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Finding the Fourth Proportional to 121,352.59, 167,467.35 and 67,641.01

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Solution

The fourth proportional to 121,352.59, 167,467.35 and 67,641.01 is: 93,345.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,352.59 : 167,467.35 = 67,641.01 : x
  2. Step 2: Convert to fraction form
    121,352.59/167,467.35 = 67,641.01/x
  3. Step 3: Cross multiply
    121,352.59x = 167,467.35 × 67,641.01
  4. Step 4: Simplify right side
    121,352.59x = 11,327,660,277.36
  5. Step 5: Solve for x
    x = 11,327,660,277.36/121,352.59
  6. Step 6: Final answer
    x = 93,345.02

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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.