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Finding the Fourth Proportional to 99,174.40, 148,502.40 and 63,923.20

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Solution

The fourth proportional to 99,174.40, 148,502.40 and 63,923.20 is: 95,717.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,174.40 : 148,502.40 = 63,923.20 : x
  2. Step 2: Convert to fraction form
    99,174.40/148,502.40 = 63,923.20/x
  3. Step 3: Cross multiply
    99,174.40x = 148,502.40 × 63,923.20
  4. Step 4: Simplify right side
    99,174.40x = 9,492,748,615.68
  5. Step 5: Solve for x
    x = 9,492,748,615.68/99,174.40
  6. Step 6: Final answer
    x = 95,717.73

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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.