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Finding the Fourth Proportional to 83,718.79, 125,621.24 and 46,271.88

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Solution

The fourth proportional to 83,718.79, 125,621.24 and 46,271.88 is: 69,431.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,718.79 : 125,621.24 = 46,271.88 : x
  2. Step 2: Convert to fraction form
    83,718.79/125,621.24 = 46,271.88/x
  3. Step 3: Cross multiply
    83,718.79x = 125,621.24 × 46,271.88
  4. Step 4: Simplify right side
    83,718.79x = 5,812,730,711.37
  5. Step 5: Solve for x
    x = 5,812,730,711.37/83,718.79
  6. Step 6: Final answer
    x = 69,431.62

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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.