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Finding the Fourth Proportional to 64,294.80, 88,723.74 and 35,612.53

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Solution

The fourth proportional to 64,294.80, 88,723.74 and 35,612.53 is: 49,143.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,294.80 : 88,723.74 = 35,612.53 : x
  2. Step 2: Convert to fraction form
    64,294.80/88,723.74 = 35,612.53/x
  3. Step 3: Cross multiply
    64,294.80x = 88,723.74 × 35,612.53
  4. Step 4: Simplify right side
    64,294.80x = 3,159,676,764.20
  5. Step 5: Solve for x
    x = 3,159,676,764.20/64,294.80
  6. Step 6: Final answer
    x = 49,143.58

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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.