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Finding the Fourth Proportional to 108,221.60, 162,332.40 and 104,074.40

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Solution

The fourth proportional to 108,221.60, 162,332.40 and 104,074.40 is: 156,111.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,221.60 : 162,332.40 = 104,074.40 : x
  2. Step 2: Convert to fraction form
    108,221.60/162,332.40 = 104,074.40/x
  3. Step 3: Cross multiply
    108,221.60x = 162,332.40 × 104,074.40
  4. Step 4: Simplify right side
    108,221.60x = 16,894,647,130.56
  5. Step 5: Solve for x
    x = 16,894,647,130.56/108,221.60
  6. Step 6: Final answer
    x = 156,111.60

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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.