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Finding the Fourth Proportional to 83,988.64, 115,895.28 and 46,260.64

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Solution

The fourth proportional to 83,988.64, 115,895.28 and 46,260.64 is: 63,834.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,988.64 : 115,895.28 = 46,260.64 : x
  2. Step 2: Convert to fraction form
    83,988.64/115,895.28 = 46,260.64/x
  3. Step 3: Cross multiply
    83,988.64x = 115,895.28 × 46,260.64
  4. Step 4: Simplify right side
    83,988.64x = 5,361,389,825.78
  5. Step 5: Solve for x
    x = 5,361,389,825.78/83,988.64
  6. Step 6: Final answer
    x = 63,834.70

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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.