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Finding the Fourth Proportional to 83,476.48, 115,196.80 and 45,750.72

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Solution

The fourth proportional to 83,476.48, 115,196.80 and 45,750.72 is: 63,135.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,476.48 : 115,196.80 = 45,750.72 : x
  2. Step 2: Convert to fraction form
    83,476.48/115,196.80 = 45,750.72/x
  3. Step 3: Cross multiply
    83,476.48x = 115,196.80 × 45,750.72
  4. Step 4: Simplify right side
    83,476.48x = 5,270,336,541.70
  5. Step 5: Solve for x
    x = 5,270,336,541.70/83,476.48
  6. Step 6: Final answer
    x = 63,135.59

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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.