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Finding the Fourth Proportional to 88,726.98, 122,424.53 and 56,449.95

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Solution

The fourth proportional to 88,726.98, 122,424.53 and 56,449.95 is: 77,889.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,726.98 : 122,424.53 = 56,449.95 : x
  2. Step 2: Convert to fraction form
    88,726.98/122,424.53 = 56,449.95/x
  3. Step 3: Cross multiply
    88,726.98x = 122,424.53 × 56,449.95
  4. Step 4: Simplify right side
    88,726.98x = 6,910,858,173.46
  5. Step 5: Solve for x
    x = 6,910,858,173.46/88,726.98
  6. Step 6: Final answer
    x = 77,889.03

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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.