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Finding the Fourth Proportional to 108,663.20, 163,432.20 and 97,290.80

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Solution

The fourth proportional to 108,663.20, 163,432.20 and 97,290.80 is: 146,327.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,663.20 : 163,432.20 = 97,290.80 : x
  2. Step 2: Convert to fraction form
    108,663.20/163,432.20 = 97,290.80/x
  3. Step 3: Cross multiply
    108,663.20x = 163,432.20 × 97,290.80
  4. Step 4: Simplify right side
    108,663.20x = 15,900,449,483.76
  5. Step 5: Solve for x
    x = 15,900,449,483.76/108,663.20
  6. Step 6: Final answer
    x = 146,327.82

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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.