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Finding the Fourth Proportional to 70,777.19, 106,166.61 and 28,093.10

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Solution

The fourth proportional to 70,777.19, 106,166.61 and 28,093.10 is: 42,139.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,777.19 : 106,166.61 = 28,093.10 : x
  2. Step 2: Convert to fraction form
    70,777.19/106,166.61 = 28,093.10/x
  3. Step 3: Cross multiply
    70,777.19x = 106,166.61 × 28,093.10
  4. Step 4: Simplify right side
    70,777.19x = 2,982,549,191.39
  5. Step 5: Solve for x
    x = 2,982,549,191.39/70,777.19
  6. Step 6: Final answer
    x = 42,139.98

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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.