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Finding the Fourth Proportional to 88,713.16, 122,419.49 and 48,419.10

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Solution

The fourth proportional to 88,713.16, 122,419.49 and 48,419.10 is: 66,815.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,713.16 : 122,419.49 = 48,419.10 : x
  2. Step 2: Convert to fraction form
    88,713.16/122,419.49 = 48,419.10/x
  3. Step 3: Cross multiply
    88,713.16x = 122,419.49 × 48,419.10
  4. Step 4: Simplify right side
    88,713.16x = 5,927,441,528.26
  5. Step 5: Solve for x
    x = 5,927,441,528.26/88,713.16
  6. Step 6: Final answer
    x = 66,815.81

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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.