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Finding the Fourth Proportional to 91,101.84, 125,720.69 and 50,265.02

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Solution

The fourth proportional to 91,101.84, 125,720.69 and 50,265.02 is: 69,365.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,101.84 : 125,720.69 = 50,265.02 : x
  2. Step 2: Convert to fraction form
    91,101.84/125,720.69 = 50,265.02/x
  3. Step 3: Cross multiply
    91,101.84x = 125,720.69 × 50,265.02
  4. Step 4: Simplify right side
    91,101.84x = 6,319,352,117.34
  5. Step 5: Solve for x
    x = 6,319,352,117.34/91,101.84
  6. Step 6: Final answer
    x = 69,365.80

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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.