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Finding the Fourth Proportional to 94,587.88, 130,367.46 and 71,916.52

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Solution

The fourth proportional to 94,587.88, 130,367.46 and 71,916.52 is: 99,120.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,587.88 : 130,367.46 = 71,916.52 : x
  2. Step 2: Convert to fraction form
    94,587.88/130,367.46 = 71,916.52/x
  3. Step 3: Cross multiply
    94,587.88x = 130,367.46 × 71,916.52
  4. Step 4: Simplify right side
    94,587.88x = 9,375,574,044.44
  5. Step 5: Solve for x
    x = 9,375,574,044.44/94,587.88
  6. Step 6: Final answer
    x = 99,120.25

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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.