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Finding the Fourth Proportional to 559,155.72, 838,761.16 and 159,854.88

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Solution

The fourth proportional to 559,155.72, 838,761.16 and 159,854.88 is: 239,790.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,155.72 : 838,761.16 = 159,854.88 : x
  2. Step 2: Convert to fraction form
    559,155.72/838,761.16 = 159,854.88/x
  3. Step 3: Cross multiply
    559,155.72x = 838,761.16 × 159,854.88
  4. Step 4: Simplify right side
    559,155.72x = 134,080,064,580.46
  5. Step 5: Solve for x
    x = 134,080,064,580.46/559,155.72
  6. Step 6: Final answer
    x = 239,790.20

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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.