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Finding the Fourth Proportional to 185,779.80, 278,689.86 and 59,390.64

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Solution

The fourth proportional to 185,779.80, 278,689.86 and 59,390.64 is: 89,092.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,779.80 : 278,689.86 = 59,390.64 : x
  2. Step 2: Convert to fraction form
    185,779.80/278,689.86 = 59,390.64/x
  3. Step 3: Cross multiply
    185,779.80x = 278,689.86 × 59,390.64
  4. Step 4: Simplify right side
    185,779.80x = 16,551,569,146.91
  5. Step 5: Solve for x
    x = 16,551,569,146.91/185,779.80
  6. Step 6: Final answer
    x = 89,092.40

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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.