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Finding the Fourth Proportional to 100,713.59, 150,934.30 and 38,350.07

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Solution

The fourth proportional to 100,713.59, 150,934.30 and 38,350.07 is: 57,473.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,713.59 : 150,934.30 = 38,350.07 : x
  2. Step 2: Convert to fraction form
    100,713.59/150,934.30 = 38,350.07/x
  3. Step 3: Cross multiply
    100,713.59x = 150,934.30 × 38,350.07
  4. Step 4: Simplify right side
    100,713.59x = 5,788,340,970.40
  5. Step 5: Solve for x
    x = 5,788,340,970.40/100,713.59
  6. Step 6: Final answer
    x = 57,473.29

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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.