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Finding the Fourth Proportional to 70,307.29, 97,069.34 and 62,740.61

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Solution

The fourth proportional to 70,307.29, 97,069.34 and 62,740.61 is: 86,622.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,307.29 : 97,069.34 = 62,740.61 : x
  2. Step 2: Convert to fraction form
    70,307.29/97,069.34 = 62,740.61/x
  3. Step 3: Cross multiply
    70,307.29x = 97,069.34 × 62,740.61
  4. Step 4: Simplify right side
    70,307.29x = 6,090,188,804.85
  5. Step 5: Solve for x
    x = 6,090,188,804.85/70,307.29
  6. Step 6: Final answer
    x = 86,622.44

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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.