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Finding the Fourth Proportional to 96,672.40, 145,008.60 and 85,267.60

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Solution

The fourth proportional to 96,672.40, 145,008.60 and 85,267.60 is: 127,901.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,672.40 : 145,008.60 = 85,267.60 : x
  2. Step 2: Convert to fraction form
    96,672.40/145,008.60 = 85,267.60/x
  3. Step 3: Cross multiply
    96,672.40x = 145,008.60 × 85,267.60
  4. Step 4: Simplify right side
    96,672.40x = 12,364,535,301.36
  5. Step 5: Solve for x
    x = 12,364,535,301.36/96,672.40
  6. Step 6: Final answer
    x = 127,901.40

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1.5x scale

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.