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Finding the Fourth Proportional to 88,672.55, 122,368.42 and 48,387.20

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Solution

The fourth proportional to 88,672.55, 122,368.42 and 48,387.20 is: 66,774.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,672.55 : 122,368.42 = 48,387.20 : x
  2. Step 2: Convert to fraction form
    88,672.55/122,368.42 = 48,387.20/x
  3. Step 3: Cross multiply
    88,672.55x = 122,368.42 × 48,387.20
  4. Step 4: Simplify right side
    88,672.55x = 5,921,064,660.87
  5. Step 5: Solve for x
    x = 5,921,064,660.87/88,672.55
  6. Step 6: Final answer
    x = 66,774.50

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1.5x scale

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.