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Finding the Fourth Proportional to 73,250.60, 109,875.90 and 47,881.40

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Solution

The fourth proportional to 73,250.60, 109,875.90 and 47,881.40 is: 71,822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,250.60 : 109,875.90 = 47,881.40 : x
  2. Step 2: Convert to fraction form
    73,250.60/109,875.90 = 47,881.40/x
  3. Step 3: Cross multiply
    73,250.60x = 109,875.90 × 47,881.40
  4. Step 4: Simplify right side
    73,250.60x = 5,261,011,918.26
  5. Step 5: Solve for x
    x = 5,261,011,918.26/73,250.60
  6. Step 6: Final answer
    x = 71,822.10

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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.