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Finding the Fourth Proportional to 109,062.20, 163,506.90 and 59,814.20

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Solution

The fourth proportional to 109,062.20, 163,506.90 and 59,814.20 is: 89,673.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,062.20 : 163,506.90 = 59,814.20 : x
  2. Step 2: Convert to fraction form
    109,062.20/163,506.90 = 59,814.20/x
  3. Step 3: Cross multiply
    109,062.20x = 163,506.90 × 59,814.20
  4. Step 4: Simplify right side
    109,062.20x = 9,780,034,417.98
  5. Step 5: Solve for x
    x = 9,780,034,417.98/109,062.20
  6. Step 6: Final answer
    x = 89,673.91

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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.