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Finding the Fourth Proportional to 570,332.43, 855,432.99 and 149,641.11

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Solution

The fourth proportional to 570,332.43, 855,432.99 and 149,641.11 is: 224,444.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,332.43 : 855,432.99 = 149,641.11 : x
  2. Step 2: Convert to fraction form
    570,332.43/855,432.99 = 149,641.11/x
  3. Step 3: Cross multiply
    570,332.43x = 855,432.99 × 149,641.11
  4. Step 4: Simplify right side
    570,332.43x = 128,007,942,154.22
  5. Step 5: Solve for x
    x = 128,007,942,154.22/570,332.43
  6. Step 6: Final answer
    x = 224,444.44

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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.