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Finding the Fourth Proportional to 92,613.61, 138,768.53 and 39,262.96

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Solution

The fourth proportional to 92,613.61, 138,768.53 and 39,262.96 is: 58,830.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,613.61 : 138,768.53 = 39,262.96 : x
  2. Step 2: Convert to fraction form
    92,613.61/138,768.53 = 39,262.96/x
  3. Step 3: Cross multiply
    92,613.61x = 138,768.53 × 39,262.96
  4. Step 4: Simplify right side
    92,613.61x = 5,448,462,548.81
  5. Step 5: Solve for x
    x = 5,448,462,548.81/92,613.61
  6. Step 6: Final answer
    x = 58,830.04

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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.