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Finding the Fourth Proportional to 96,781.60, 145,215.60 and 34,496.80

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Solution

The fourth proportional to 96,781.60, 145,215.60 and 34,496.80 is: 51,760.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,781.60 : 145,215.60 = 34,496.80 : x
  2. Step 2: Convert to fraction form
    96,781.60/145,215.60 = 34,496.80/x
  3. Step 3: Cross multiply
    96,781.60x = 145,215.60 × 34,496.80
  4. Step 4: Simplify right side
    96,781.60x = 5,009,473,510.08
  5. Step 5: Solve for x
    x = 5,009,473,510.08/96,781.60
  6. Step 6: Final answer
    x = 51,760.60

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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.