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Finding the Fourth Proportional to 83,360, 115,035.84 and 45,118.68

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Solution

The fourth proportional to 83,360, 115,035.84 and 45,118.68 is: 62,263.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,360 : 115,035.84 = 45,118.68 : x
  2. Step 2: Convert to fraction form
    83,360/115,035.84 = 45,118.68/x
  3. Step 3: Cross multiply
    83,360x = 115,035.84 × 45,118.68
  4. Step 4: Simplify right side
    83,360x = 5,190,265,253.49
  5. Step 5: Solve for x
    x = 5,190,265,253.49/83,360
  6. Step 6: Final answer
    x = 62,263.26

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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.