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Finding the Fourth Proportional to 98,787.48, 148,187.60 and 34,737.77

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Solution

The fourth proportional to 98,787.48, 148,187.60 and 34,737.77 is: 52,108.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,787.48 : 148,187.60 = 34,737.77 : x
  2. Step 2: Convert to fraction form
    98,787.48/148,187.60 = 34,737.77/x
  3. Step 3: Cross multiply
    98,787.48x = 148,187.60 × 34,737.77
  4. Step 4: Simplify right side
    98,787.48x = 5,147,706,773.62
  5. Step 5: Solve for x
    x = 5,147,706,773.62/98,787.48
  6. Step 6: Final answer
    x = 52,108.90

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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.