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Finding the Fourth Proportional to 605,124.92, 907,785.88 and 178,703.86

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Solution

The fourth proportional to 605,124.92, 907,785.88 and 178,703.86 is: 268,084.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,124.92 : 907,785.88 = 178,703.86 : x
  2. Step 2: Convert to fraction form
    605,124.92/907,785.88 = 178,703.86/x
  3. Step 3: Cross multiply
    605,124.92x = 907,785.88 × 178,703.86
  4. Step 4: Simplify right side
    605,124.92x = 162,224,840,809.50
  5. Step 5: Solve for x
    x = 162,224,840,809.50/605,124.92
  6. Step 6: Final answer
    x = 268,084.88

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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.