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Finding the Fourth Proportional to 121,487.69, 167,652.53 and 67,772.66

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Solution

The fourth proportional to 121,487.69, 167,652.53 and 67,772.66 is: 93,526.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,487.69 : 167,652.53 = 67,772.66 : x
  2. Step 2: Convert to fraction form
    121,487.69/167,652.53 = 67,772.66/x
  3. Step 3: Cross multiply
    121,487.69x = 167,652.53 × 67,772.66
  4. Step 4: Simplify right side
    121,487.69x = 11,362,257,913.83
  5. Step 5: Solve for x
    x = 11,362,257,913.83/121,487.69
  6. Step 6: Final answer
    x = 93,526.01

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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.