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Finding the Fourth Proportional to 101,741.40, 152,612.10 and 66,701.40

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Solution

The fourth proportional to 101,741.40, 152,612.10 and 66,701.40 is: 100,052.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,741.40 : 152,612.10 = 66,701.40 : x
  2. Step 2: Convert to fraction form
    101,741.40/152,612.10 = 66,701.40/x
  3. Step 3: Cross multiply
    101,741.40x = 152,612.10 × 66,701.40
  4. Step 4: Simplify right side
    101,741.40x = 10,179,440,726.94
  5. Step 5: Solve for x
    x = 10,179,440,726.94/101,741.40
  6. Step 6: Final answer
    x = 100,052.10

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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.