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Finding the Fourth Proportional to 64,616.82, 96,909.03 and 45,842.10

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Solution

The fourth proportional to 64,616.82, 96,909.03 and 45,842.10 is: 68,751.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,616.82 : 96,909.03 = 45,842.10 : x
  2. Step 2: Convert to fraction form
    64,616.82/96,909.03 = 45,842.10/x
  3. Step 3: Cross multiply
    64,616.82x = 96,909.03 × 45,842.10
  4. Step 4: Simplify right side
    64,616.82x = 4,442,513,444.16
  5. Step 5: Solve for x
    x = 4,442,513,444.16/64,616.82
  6. Step 6: Final answer
    x = 68,751.66

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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.