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Finding the Fourth Proportional to 70,830.80, 106,404.60 and 59,166.80

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Solution

The fourth proportional to 70,830.80, 106,404.60 and 59,166.80 is: 88,882.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,830.80 : 106,404.60 = 59,166.80 : x
  2. Step 2: Convert to fraction form
    70,830.80/106,404.60 = 59,166.80/x
  3. Step 3: Cross multiply
    70,830.80x = 106,404.60 × 59,166.80
  4. Step 4: Simplify right side
    70,830.80x = 6,295,619,687.28
  5. Step 5: Solve for x
    x = 6,295,619,687.28/70,830.80
  6. Step 6: Final answer
    x = 88,882.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.