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Finding the Fourth Proportional to 88,643.52, 122,327.28 and 50,918.40

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Solution

The fourth proportional to 88,643.52, 122,327.28 and 50,918.40 is: 70,266.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,643.52 : 122,327.28 = 50,918.40 : x
  2. Step 2: Convert to fraction form
    88,643.52/122,327.28 = 50,918.40/x
  3. Step 3: Cross multiply
    88,643.52x = 122,327.28 × 50,918.40
  4. Step 4: Simplify right side
    88,643.52x = 6,228,709,373.95
  5. Step 5: Solve for x
    x = 6,228,709,373.95/88,643.52
  6. Step 6: Final answer
    x = 70,266.95

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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.