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Finding the Fourth Proportional to 88,981.02, 122,776.02 and 53,187.12

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Solution

The fourth proportional to 88,981.02, 122,776.02 and 53,187.12 is: 73,387.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,981.02 : 122,776.02 = 53,187.12 : x
  2. Step 2: Convert to fraction form
    88,981.02/122,776.02 = 53,187.12/x
  3. Step 3: Cross multiply
    88,981.02x = 122,776.02 × 53,187.12
  4. Step 4: Simplify right side
    88,981.02x = 6,530,102,908.86
  5. Step 5: Solve for x
    x = 6,530,102,908.86/88,981.02
  6. Step 6: Final answer
    x = 73,387.59

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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.