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Finding the Fourth Proportional to 124,497.57, 186,746.25 and 45,617.97

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Solution

The fourth proportional to 124,497.57, 186,746.25 and 45,617.97 is: 68,426.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,497.57 : 186,746.25 = 45,617.97 : x
  2. Step 2: Convert to fraction form
    124,497.57/186,746.25 = 45,617.97/x
  3. Step 3: Cross multiply
    124,497.57x = 186,746.25 × 45,617.97
  4. Step 4: Simplify right side
    124,497.57x = 8,518,984,830.11
  5. Step 5: Solve for x
    x = 8,518,984,830.11/124,497.57
  6. Step 6: Final answer
    x = 68,426.92

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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.