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Finding the Fourth Proportional to 113,380.80, 170,071.20 and 97,634.40

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Solution

The fourth proportional to 113,380.80, 170,071.20 and 97,634.40 is: 146,451.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,380.80 : 170,071.20 = 97,634.40 : x
  2. Step 2: Convert to fraction form
    113,380.80/170,071.20 = 97,634.40/x
  3. Step 3: Cross multiply
    113,380.80x = 170,071.20 × 97,634.40
  4. Step 4: Simplify right side
    113,380.80x = 16,604,799,569.28
  5. Step 5: Solve for x
    x = 16,604,799,569.28/113,380.80
  6. Step 6: Final answer
    x = 146,451.60

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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.