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Finding the Fourth Proportional to 70,854.20, 97,697.67 and 52,918.91

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Solution

The fourth proportional to 70,854.20, 97,697.67 and 52,918.91 is: 72,967.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,854.20 : 97,697.67 = 52,918.91 : x
  2. Step 2: Convert to fraction form
    70,854.20/97,697.67 = 52,918.91/x
  3. Step 3: Cross multiply
    70,854.20x = 97,697.67 × 52,918.91
  4. Step 4: Simplify right side
    70,854.20x = 5,170,054,205.94
  5. Step 5: Solve for x
    x = 5,170,054,205.94/70,854.20
  6. Step 6: Final answer
    x = 72,967.51

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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.