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Finding the Fourth Proportional to 134,817.90, 202,275.45 and 129,957.90

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Solution

The fourth proportional to 134,817.90, 202,275.45 and 129,957.90 is: 194,983.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,817.90 : 202,275.45 = 129,957.90 : x
  2. Step 2: Convert to fraction form
    134,817.90/202,275.45 = 129,957.90/x
  3. Step 3: Cross multiply
    134,817.90x = 202,275.45 × 129,957.90
  4. Step 4: Simplify right side
    134,817.90x = 26,287,292,703.56
  5. Step 5: Solve for x
    x = 26,287,292,703.56/134,817.90
  6. Step 6: Final answer
    x = 194,983.70

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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.