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Finding the Fourth Proportional to 64,304.32, 88,741.92 and 36,011.20

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Solution

The fourth proportional to 64,304.32, 88,741.92 and 36,011.20 is: 49,696.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,304.32 : 88,741.92 = 36,011.20 : x
  2. Step 2: Convert to fraction form
    64,304.32/88,741.92 = 36,011.20/x
  3. Step 3: Cross multiply
    64,304.32x = 88,741.92 × 36,011.20
  4. Step 4: Simplify right side
    64,304.32x = 3,195,703,029.50
  5. Step 5: Solve for x
    x = 3,195,703,029.50/64,304.32
  6. Step 6: Final answer
    x = 49,696.55

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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.