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Finding the Fourth Proportional to 199,366.10, 299,135.55 and 100,870.10

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Solution

The fourth proportional to 199,366.10, 299,135.55 and 100,870.10 is: 151,348.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,366.10 : 299,135.55 = 100,870.10 : x
  2. Step 2: Convert to fraction form
    199,366.10/299,135.55 = 100,870.10/x
  3. Step 3: Cross multiply
    199,366.10x = 299,135.55 × 100,870.10
  4. Step 4: Simplify right side
    199,366.10x = 30,173,832,842.06
  5. Step 5: Solve for x
    x = 30,173,832,842.06/199,366.10
  6. Step 6: Final answer
    x = 151,348.86

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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.