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Finding the Fourth Proportional to 109,737.36, 151,436.76 and 59,436

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Solution

The fourth proportional to 109,737.36, 151,436.76 and 59,436 is: 82,021.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,737.36 : 151,436.76 = 59,436 : x
  2. Step 2: Convert to fraction form
    109,737.36/151,436.76 = 59,436/x
  3. Step 3: Cross multiply
    109,737.36x = 151,436.76 × 59,436
  4. Step 4: Simplify right side
    109,737.36x = 9,000,795,267.36
  5. Step 5: Solve for x
    x = 9,000,795,267.36/109,737.36
  6. Step 6: Final answer
    x = 82,021.25

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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.