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Finding the Fourth Proportional to 144,587.57, 216,846.42 and 55,784.43

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Solution

The fourth proportional to 144,587.57, 216,846.42 and 55,784.43 is: 83,663.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,587.57 : 216,846.42 = 55,784.43 : x
  2. Step 2: Convert to fraction form
    144,587.57/216,846.42 = 55,784.43/x
  3. Step 3: Cross multiply
    144,587.57x = 216,846.42 × 55,784.43
  4. Step 4: Simplify right side
    144,587.57x = 12,096,653,728.05
  5. Step 5: Solve for x
    x = 12,096,653,728.05/144,587.57
  6. Step 6: Final answer
    x = 83,663.17

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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.