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Finding the Fourth Proportional to 94,754.80, 142,132.20 and 42,108.40

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Solution

The fourth proportional to 94,754.80, 142,132.20 and 42,108.40 is: 63,162.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,754.80 : 142,132.20 = 42,108.40 : x
  2. Step 2: Convert to fraction form
    94,754.80/142,132.20 = 42,108.40/x
  3. Step 3: Cross multiply
    94,754.80x = 142,132.20 × 42,108.40
  4. Step 4: Simplify right side
    94,754.80x = 5,984,959,530.48
  5. Step 5: Solve for x
    x = 5,984,959,530.48/94,754.80
  6. Step 6: Final answer
    x = 63,162.60

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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.