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Finding the Fourth Proportional to 71,307.24, 98,854.17 and 67,515

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Solution

The fourth proportional to 71,307.24, 98,854.17 and 67,515 is: 93,596.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,307.24 : 98,854.17 = 67,515 : x
  2. Step 2: Convert to fraction form
    71,307.24/98,854.17 = 67,515/x
  3. Step 3: Cross multiply
    71,307.24x = 98,854.17 × 67,515
  4. Step 4: Simplify right side
    71,307.24x = 6,674,139,287.55
  5. Step 5: Solve for x
    x = 6,674,139,287.55/71,307.24
  6. Step 6: Final answer
    x = 93,596.94

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.