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Finding the Fourth Proportional to 73,270.60, 109,905.90 and 47,901.40

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Solution

The fourth proportional to 73,270.60, 109,905.90 and 47,901.40 is: 71,852.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,270.60 : 109,905.90 = 47,901.40 : x
  2. Step 2: Convert to fraction form
    73,270.60/109,905.90 = 47,901.40/x
  3. Step 3: Cross multiply
    73,270.60x = 109,905.90 × 47,901.40
  4. Step 4: Simplify right side
    73,270.60x = 5,264,646,478.26
  5. Step 5: Solve for x
    x = 5,264,646,478.26/73,270.60
  6. Step 6: Final answer
    x = 71,852.10

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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.