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Finding the Fourth Proportional to 625,553.13, 938,329.79 and 152,238.49

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Solution

The fourth proportional to 625,553.13, 938,329.79 and 152,238.49 is: 228,357.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,553.13 : 938,329.79 = 152,238.49 : x
  2. Step 2: Convert to fraction form
    625,553.13/938,329.79 = 152,238.49/x
  3. Step 3: Cross multiply
    625,553.13x = 938,329.79 × 152,238.49
  4. Step 4: Simplify right side
    625,553.13x = 142,849,908,386.39
  5. Step 5: Solve for x
    x = 142,849,908,386.39/625,553.13
  6. Step 6: Final answer
    x = 228,357.75

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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.