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Finding the Fourth Proportional to 113,359.70, 170,039.55 and 103,250.90

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Solution

The fourth proportional to 113,359.70, 170,039.55 and 103,250.90 is: 154,876.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,359.70 : 170,039.55 = 103,250.90 : x
  2. Step 2: Convert to fraction form
    113,359.70/170,039.55 = 103,250.90/x
  3. Step 3: Cross multiply
    113,359.70x = 170,039.55 × 103,250.90
  4. Step 4: Simplify right side
    113,359.70x = 17,556,736,573.10
  5. Step 5: Solve for x
    x = 17,556,736,573.10/113,359.70
  6. Step 6: Final answer
    x = 154,876.35

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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.