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Finding the Fourth Proportional to 325,070.18, 487,701.87 and 156,541.79

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Solution

The fourth proportional to 325,070.18, 487,701.87 and 156,541.79 is: 234,859.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,070.18 : 487,701.87 = 156,541.79 : x
  2. Step 2: Convert to fraction form
    325,070.18/487,701.87 = 156,541.79/x
  3. Step 3: Cross multiply
    325,070.18x = 487,701.87 × 156,541.79
  4. Step 4: Simplify right side
    325,070.18x = 76,345,720,690.61
  5. Step 5: Solve for x
    x = 76,345,720,690.61/325,070.18
  6. Step 6: Final answer
    x = 234,859.19

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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.