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Finding the Fourth Proportional to 64,377.88, 88,792.67 and 56,406.26

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Solution

The fourth proportional to 64,377.88, 88,792.67 and 56,406.26 is: 77,797.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,377.88 : 88,792.67 = 56,406.26 : x
  2. Step 2: Convert to fraction form
    64,377.88/88,792.67 = 56,406.26/x
  3. Step 3: Cross multiply
    64,377.88x = 88,792.67 × 56,406.26
  4. Step 4: Simplify right side
    64,377.88x = 5,008,462,430.11
  5. Step 5: Solve for x
    x = 5,008,462,430.11/64,377.88
  6. Step 6: Final answer
    x = 77,797.88

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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.