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Finding the Fourth Proportional to 132,348.70, 198,523.05 and 70,140.70

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Solution

The fourth proportional to 132,348.70, 198,523.05 and 70,140.70 is: 105,211.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,348.70 : 198,523.05 = 70,140.70 : x
  2. Step 2: Convert to fraction form
    132,348.70/198,523.05 = 70,140.70/x
  3. Step 3: Cross multiply
    132,348.70x = 198,523.05 × 70,140.70
  4. Step 4: Simplify right side
    132,348.70x = 13,924,545,693.14
  5. Step 5: Solve for x
    x = 13,924,545,693.14/132,348.70
  6. Step 6: Final answer
    x = 105,211.05

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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.