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Finding the Fourth Proportional to 477,359.67, 715,886.36 and 157,439.62

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Solution

The fourth proportional to 477,359.67, 715,886.36 and 157,439.62 is: 236,108.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,359.67 : 715,886.36 = 157,439.62 : x
  2. Step 2: Convert to fraction form
    477,359.67/715,886.36 = 157,439.62/x
  3. Step 3: Cross multiply
    477,359.67x = 715,886.36 × 157,439.62
  4. Step 4: Simplify right side
    477,359.67x = 112,708,873,152.78
  5. Step 5: Solve for x
    x = 112,708,873,152.78/477,359.67
  6. Step 6: Final answer
    x = 236,108.91

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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.