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Finding the Fourth Proportional to 97,349.76, 134,396.16 and 63,387.84

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Solution

The fourth proportional to 97,349.76, 134,396.16 and 63,387.84 is: 87,510.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,349.76 : 134,396.16 = 63,387.84 : x
  2. Step 2: Convert to fraction form
    97,349.76/134,396.16 = 63,387.84/x
  3. Step 3: Cross multiply
    97,349.76x = 134,396.16 × 63,387.84
  4. Step 4: Simplify right side
    97,349.76x = 8,519,082,286.69
  5. Step 5: Solve for x
    x = 8,519,082,286.69/97,349.76
  6. Step 6: Final answer
    x = 87,510.05

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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.