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Finding the Fourth Proportional to 170,609.16, 235,364.52 and 98,947.68

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Solution

The fourth proportional to 170,609.16, 235,364.52 and 98,947.68 is: 136,503.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,609.16 : 235,364.52 = 98,947.68 : x
  2. Step 2: Convert to fraction form
    170,609.16/235,364.52 = 98,947.68/x
  3. Step 3: Cross multiply
    170,609.16x = 235,364.52 × 98,947.68
  4. Step 4: Simplify right side
    170,609.16x = 23,288,773,208.31
  5. Step 5: Solve for x
    x = 23,288,773,208.31/170,609.16
  6. Step 6: Final answer
    x = 136,503.65

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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.