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Finding the Fourth Proportional to 88,411.14, 122,017.74 and 49,655.31

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Solution

The fourth proportional to 88,411.14, 122,017.74 and 49,655.31 is: 68,530.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,411.14 : 122,017.74 = 49,655.31 : x
  2. Step 2: Convert to fraction form
    88,411.14/122,017.74 = 49,655.31/x
  3. Step 3: Cross multiply
    88,411.14x = 122,017.74 × 49,655.31
  4. Step 4: Simplify right side
    88,411.14x = 6,058,828,705.20
  5. Step 5: Solve for x
    x = 6,058,828,705.20/88,411.14
  6. Step 6: Final answer
    x = 68,530.15

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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.