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Finding the Fourth Proportional to 144,479,807.70, 217,073,605.95 and 108,647,999.70

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Solution

The fourth proportional to 144,479,807.70, 217,073,605.95 and 108,647,999.70 is: 163,238,126.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,479,807.70 : 217,073,605.95 = 108,647,999.70 : x
  2. Step 2: Convert to fraction form
    144,479,807.70/217,073,605.95 = 108,647,999.70/x
  3. Step 3: Cross multiply
    144,479,807.70x = 217,073,605.95 × 108,647,999.70
  4. Step 4: Simplify right side
    144,479,807.70x = 23,584,613,074,133,516
  5. Step 5: Solve for x
    x = 23,584,613,074,133,516/144,479,807.70
  6. Step 6: Final answer
    x = 163,238,126.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.