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Finding the Fourth Proportional to 96,614.40, 145,310.40 and 86,505.60

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Solution

The fourth proportional to 96,614.40, 145,310.40 and 86,505.60 is: 130,106.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,614.40 : 145,310.40 = 86,505.60 : x
  2. Step 2: Convert to fraction form
    96,614.40/145,310.40 = 86,505.60/x
  3. Step 3: Cross multiply
    96,614.40x = 145,310.40 × 86,505.60
  4. Step 4: Simplify right side
    96,614.40x = 12,570,163,338.24
  5. Step 5: Solve for x
    x = 12,570,163,338.24/96,614.40
  6. Step 6: Final answer
    x = 130,106.52

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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.