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Finding the Fourth Proportional to 88,616.76, 122,255.10 and 56,804.28

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Solution

The fourth proportional to 88,616.76, 122,255.10 and 56,804.28 is: 78,366.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,616.76 : 122,255.10 = 56,804.28 : x
  2. Step 2: Convert to fraction form
    88,616.76/122,255.10 = 56,804.28/x
  3. Step 3: Cross multiply
    88,616.76x = 122,255.10 × 56,804.28
  4. Step 4: Simplify right side
    88,616.76x = 6,944,612,931.83
  5. Step 5: Solve for x
    x = 6,944,612,931.83/88,616.76
  6. Step 6: Final answer
    x = 78,366.81

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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.