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Finding the Fourth Proportional to 91,598.08, 137,416.76 and 28,416.88

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Solution

The fourth proportional to 91,598.08, 137,416.76 and 28,416.88 is: 42,631.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,598.08 : 137,416.76 = 28,416.88 : x
  2. Step 2: Convert to fraction form
    91,598.08/137,416.76 = 28,416.88/x
  3. Step 3: Cross multiply
    91,598.08x = 137,416.76 × 28,416.88
  4. Step 4: Simplify right side
    91,598.08x = 3,904,955,578.91
  5. Step 5: Solve for x
    x = 3,904,955,578.91/91,598.08
  6. Step 6: Final answer
    x = 42,631.41

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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.