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Finding the Fourth Proportional to 70,823.67, 106,235.55 and 67,748.70

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Solution

The fourth proportional to 70,823.67, 106,235.55 and 67,748.70 is: 101,623.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,823.67 : 106,235.55 = 67,748.70 : x
  2. Step 2: Convert to fraction form
    70,823.67/106,235.55 = 67,748.70/x
  3. Step 3: Cross multiply
    70,823.67x = 106,235.55 × 67,748.70
  4. Step 4: Simplify right side
    70,823.67x = 7,197,320,804.67
  5. Step 5: Solve for x
    x = 7,197,320,804.67/70,823.67
  6. Step 6: Final answer
    x = 101,623.10

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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.