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Finding the Fourth Proportional to 109,969.16, 151,753.28 and 62,223.53

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Solution

The fourth proportional to 109,969.16, 151,753.28 and 62,223.53 is: 85,866.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,969.16 : 151,753.28 = 62,223.53 : x
  2. Step 2: Convert to fraction form
    109,969.16/151,753.28 = 62,223.53/x
  3. Step 3: Cross multiply
    109,969.16x = 151,753.28 × 62,223.53
  4. Step 4: Simplify right side
    109,969.16x = 9,442,623,700.79
  5. Step 5: Solve for x
    x = 9,442,623,700.79/109,969.16
  6. Step 6: Final answer
    x = 85,866.11

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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.