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Finding the Fourth Proportional to 191,036.70, 286,372.80 and 71,061.53

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Solution

The fourth proportional to 191,036.70, 286,372.80 and 71,061.53 is: 106,524.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,036.70 : 286,372.80 = 71,061.53 : x
  2. Step 2: Convert to fraction form
    191,036.70/286,372.80 = 71,061.53/x
  3. Step 3: Cross multiply
    191,036.70x = 286,372.80 × 71,061.53
  4. Step 4: Simplify right side
    191,036.70x = 20,350,087,886.52
  5. Step 5: Solve for x
    x = 20,350,087,886.52/191,036.70
  6. Step 6: Final answer
    x = 106,524.49

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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.