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Finding the Fourth Proportional to 170,917, 235,870.20 and 94,441.02

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Solution

The fourth proportional to 170,917, 235,870.20 and 94,441.02 is: 130,331.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,917 : 235,870.20 = 94,441.02 : x
  2. Step 2: Convert to fraction form
    170,917/235,870.20 = 94,441.02/x
  3. Step 3: Cross multiply
    170,917x = 235,870.20 × 94,441.02
  4. Step 4: Simplify right side
    170,917x = 22,275,822,275.60
  5. Step 5: Solve for x
    x = 22,275,822,275.60/170,917
  6. Step 6: Final answer
    x = 130,331.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.