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Finding the Fourth Proportional to 48,275.70, 72,419.02 and 43,314.86

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Solution

The fourth proportional to 48,275.70, 72,419.02 and 43,314.86 is: 64,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,275.70 : 72,419.02 = 43,314.86 : x
  2. Step 2: Convert to fraction form
    48,275.70/72,419.02 = 43,314.86/x
  3. Step 3: Cross multiply
    48,275.70x = 72,419.02 × 43,314.86
  4. Step 4: Simplify right side
    48,275.70x = 3,136,819,712.64
  5. Step 5: Solve for x
    x = 3,136,819,712.64/48,275.70
  6. Step 6: Final answer
    x = 64,977.20

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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.