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Finding the Fourth Proportional to 73,397.60, 101,330.72 and 48,320

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Solution

The fourth proportional to 73,397.60, 101,330.72 and 48,320 is: 66,709.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,397.60 : 101,330.72 = 48,320 : x
  2. Step 2: Convert to fraction form
    73,397.60/101,330.72 = 48,320/x
  3. Step 3: Cross multiply
    73,397.60x = 101,330.72 × 48,320
  4. Step 4: Simplify right side
    73,397.60x = 4,896,300,390.40
  5. Step 5: Solve for x
    x = 4,896,300,390.40/73,397.60
  6. Step 6: Final answer
    x = 66,709.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.