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Finding the Fourth Proportional to 121,547.52, 167,735.34 and 71,246.52

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Solution

The fourth proportional to 121,547.52, 167,735.34 and 71,246.52 is: 98,320.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,547.52 : 167,735.34 = 71,246.52 : x
  2. Step 2: Convert to fraction form
    121,547.52/167,735.34 = 71,246.52/x
  3. Step 3: Cross multiply
    121,547.52x = 167,735.34 × 71,246.52
  4. Step 4: Simplify right side
    121,547.52x = 11,950,559,256.02
  5. Step 5: Solve for x
    x = 11,950,559,256.02/121,547.52
  6. Step 6: Final answer
    x = 98,320.06

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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.