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Finding the Fourth Proportional to 156,538.53, 215,860.80 and 133,952.28

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Solution

The fourth proportional to 156,538.53, 215,860.80 and 133,952.28 is: 184,715.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,538.53 : 215,860.80 = 133,952.28 : x
  2. Step 2: Convert to fraction form
    156,538.53/215,860.80 = 133,952.28/x
  3. Step 3: Cross multiply
    156,538.53x = 215,860.80 × 133,952.28
  4. Step 4: Simplify right side
    156,538.53x = 28,915,046,322.62
  5. Step 5: Solve for x
    x = 28,915,046,322.62/156,538.53
  6. Step 6: Final answer
    x = 184,715.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.