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Finding the Fourth Proportional to 96,854.40, 133,657.20 and 54,421.20

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Solution

The fourth proportional to 96,854.40, 133,657.20 and 54,421.20 is: 75,100.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,854.40 : 133,657.20 = 54,421.20 : x
  2. Step 2: Convert to fraction form
    96,854.40/133,657.20 = 54,421.20/x
  3. Step 3: Cross multiply
    96,854.40x = 133,657.20 × 54,421.20
  4. Step 4: Simplify right side
    96,854.40x = 7,273,785,212.64
  5. Step 5: Solve for x
    x = 7,273,785,212.64/96,854.40
  6. Step 6: Final answer
    x = 75,100.20

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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.