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Finding the Fourth Proportional to 144,617.40, 216,926.10 and 122,528.70

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Solution

The fourth proportional to 144,617.40, 216,926.10 and 122,528.70 is: 183,793.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,617.40 : 216,926.10 = 122,528.70 : x
  2. Step 2: Convert to fraction form
    144,617.40/216,926.10 = 122,528.70/x
  3. Step 3: Cross multiply
    144,617.40x = 216,926.10 × 122,528.70
  4. Step 4: Simplify right side
    144,617.40x = 26,579,673,029.07
  5. Step 5: Solve for x
    x = 26,579,673,029.07/144,617.40
  6. Step 6: Final answer
    x = 183,793.05

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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.