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Finding the Fourth Proportional to 64,470.90, 96,706.35 and 50,474.10

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Solution

The fourth proportional to 64,470.90, 96,706.35 and 50,474.10 is: 75,711.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,470.90 : 96,706.35 = 50,474.10 : x
  2. Step 2: Convert to fraction form
    64,470.90/96,706.35 = 50,474.10/x
  3. Step 3: Cross multiply
    64,470.90x = 96,706.35 × 50,474.10
  4. Step 4: Simplify right side
    64,470.90x = 4,881,165,980.54
  5. Step 5: Solve for x
    x = 4,881,165,980.54/64,470.90
  6. Step 6: Final answer
    x = 75,711.15

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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.