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Finding the Fourth Proportional to 73,070.48, 100,892.52 and 71,908.40

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Solution

The fourth proportional to 73,070.48, 100,892.52 and 71,908.40 is: 99,287.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,070.48 : 100,892.52 = 71,908.40 : x
  2. Step 2: Convert to fraction form
    73,070.48/100,892.52 = 71,908.40/x
  3. Step 3: Cross multiply
    73,070.48x = 100,892.52 × 71,908.40
  4. Step 4: Simplify right side
    73,070.48x = 7,255,019,685.17
  5. Step 5: Solve for x
    x = 7,255,019,685.17/73,070.48
  6. Step 6: Final answer
    x = 99,287.97

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1.5x scale

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.