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Finding the Fourth Proportional to 88,776.62, 122,509.75 and 48,490.52

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Solution

The fourth proportional to 88,776.62, 122,509.75 and 48,490.52 is: 66,915.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,776.62 : 122,509.75 = 48,490.52 : x
  2. Step 2: Convert to fraction form
    88,776.62/122,509.75 = 48,490.52/x
  3. Step 3: Cross multiply
    88,776.62x = 122,509.75 × 48,490.52
  4. Step 4: Simplify right side
    88,776.62x = 5,940,561,482.57
  5. Step 5: Solve for x
    x = 5,940,561,482.57/88,776.62
  6. Step 6: Final answer
    x = 66,915.83

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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.