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Finding the Fourth Proportional to 64,542.65, 88,847.73 and 55,994.45

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Solution

The fourth proportional to 64,542.65, 88,847.73 and 55,994.45 is: 77,080.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,542.65 : 88,847.73 = 55,994.45 : x
  2. Step 2: Convert to fraction form
    64,542.65/88,847.73 = 55,994.45/x
  3. Step 3: Cross multiply
    64,542.65x = 88,847.73 × 55,994.45
  4. Step 4: Simplify right side
    64,542.65x = 4,974,979,330.86
  5. Step 5: Solve for x
    x = 4,974,979,330.86/64,542.65
  6. Step 6: Final answer
    x = 77,080.50

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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.