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Finding the Fourth Proportional to 99,737.30, 149,715.30 and 62,339.60

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Solution

The fourth proportional to 99,737.30, 149,715.30 and 62,339.60 is: 93,577.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,737.30 : 149,715.30 = 62,339.60 : x
  2. Step 2: Convert to fraction form
    99,737.30/149,715.30 = 62,339.60/x
  3. Step 3: Cross multiply
    99,737.30x = 149,715.30 × 62,339.60
  4. Step 4: Simplify right side
    99,737.30x = 9,333,191,915.88
  5. Step 5: Solve for x
    x = 9,333,191,915.88/99,737.30
  6. Step 6: Final answer
    x = 93,577.75

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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.