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Finding the Fourth Proportional to 88,878.32, 122,654.01 and 53,061.64

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Solution

The fourth proportional to 88,878.32, 122,654.01 and 53,061.64 is: 73,226.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,878.32 : 122,654.01 = 53,061.64 : x
  2. Step 2: Convert to fraction form
    88,878.32/122,654.01 = 53,061.64/x
  3. Step 3: Cross multiply
    88,878.32x = 122,654.01 × 53,061.64
  4. Step 4: Simplify right side
    88,878.32x = 6,508,222,923.18
  5. Step 5: Solve for x
    x = 6,508,222,923.18/88,878.32
  6. Step 6: Final answer
    x = 73,226.21

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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.