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Finding the Fourth Proportional to 88,644.48, 132,447.58 and 85,543.80

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Solution

The fourth proportional to 88,644.48, 132,447.58 and 85,543.80 is: 127,814.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,644.48 : 132,447.58 = 85,543.80 : x
  2. Step 2: Convert to fraction form
    88,644.48/132,447.58 = 85,543.80/x
  3. Step 3: Cross multiply
    88,644.48x = 132,447.58 × 85,543.80
  4. Step 4: Simplify right side
    88,644.48x = 11,330,069,294.00
  5. Step 5: Solve for x
    x = 11,330,069,294.00/88,644.48
  6. Step 6: Final answer
    x = 127,814.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.