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Finding the Fourth Proportional to 73,472.40, 110,111.40 and 65,113.20

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Solution

The fourth proportional to 73,472.40, 110,111.40 and 65,113.20 is: 97,583.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,472.40 : 110,111.40 = 65,113.20 : x
  2. Step 2: Convert to fraction form
    73,472.40/110,111.40 = 65,113.20/x
  3. Step 3: Cross multiply
    73,472.40x = 110,111.40 × 65,113.20
  4. Step 4: Simplify right side
    73,472.40x = 7,169,705,610.48
  5. Step 5: Solve for x
    x = 7,169,705,610.48/73,472.40
  6. Step 6: Final answer
    x = 97,583.66

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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.