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Finding the Fourth Proportional to 63,653.68, 87,865.72 and 54,665.08

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Solution

The fourth proportional to 63,653.68, 87,865.72 and 54,665.08 is: 75,458.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,653.68 : 87,865.72 = 54,665.08 : x
  2. Step 2: Convert to fraction form
    63,653.68/87,865.72 = 54,665.08/x
  3. Step 3: Cross multiply
    63,653.68x = 87,865.72 × 54,665.08
  4. Step 4: Simplify right side
    63,653.68x = 4,803,186,613.06
  5. Step 5: Solve for x
    x = 4,803,186,613.06/63,653.68
  6. Step 6: Final answer
    x = 75,458.11

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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.