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Finding the Fourth Proportional to 170,886.25, 235,829.76 and 98,289.02

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Solution

The fourth proportional to 170,886.25, 235,829.76 and 98,289.02 is: 135,642.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,886.25 : 235,829.76 = 98,289.02 : x
  2. Step 2: Convert to fraction form
    170,886.25/235,829.76 = 98,289.02/x
  3. Step 3: Cross multiply
    170,886.25x = 235,829.76 × 98,289.02
  4. Step 4: Simplify right side
    170,886.25x = 23,179,475,997.24
  5. Step 5: Solve for x
    x = 23,179,475,997.24/170,886.25
  6. Step 6: Final answer
    x = 135,642.72

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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.