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Finding the Fourth Proportional to 60,025.80, 89,981.10 and 46,691.40

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Solution

The fourth proportional to 60,025.80, 89,981.10 and 46,691.40 is: 69,992.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,025.80 : 89,981.10 = 46,691.40 : x
  2. Step 2: Convert to fraction form
    60,025.80/89,981.10 = 46,691.40/x
  3. Step 3: Cross multiply
    60,025.80x = 89,981.10 × 46,691.40
  4. Step 4: Simplify right side
    60,025.80x = 4,201,343,532.54
  5. Step 5: Solve for x
    x = 4,201,343,532.54/60,025.80
  6. Step 6: Final answer
    x = 69,992.30

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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.