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Finding the Fourth Proportional to 113,790.80, 170,358.15 and 113,790.80

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Solution

The fourth proportional to 113,790.80, 170,358.15 and 113,790.80 is: 170,358.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,790.80 : 170,358.15 = 113,790.80 : x
  2. Step 2: Convert to fraction form
    113,790.80/170,358.15 = 113,790.80/x
  3. Step 3: Cross multiply
    113,790.80x = 170,358.15 × 113,790.80
  4. Step 4: Simplify right side
    113,790.80x = 19,385,190,175.02
  5. Step 5: Solve for x
    x = 19,385,190,175.02/113,790.80
  6. Step 6: Final answer
    x = 170,358.15

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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.