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Finding the Fourth Proportional to 121,192.56, 181,506.66 and 116,988.66

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Solution

The fourth proportional to 121,192.56, 181,506.66 and 116,988.66 is: 175,210.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,192.56 : 181,506.66 = 116,988.66 : x
  2. Step 2: Convert to fraction form
    121,192.56/181,506.66 = 116,988.66/x
  3. Step 3: Cross multiply
    121,192.56x = 181,506.66 × 116,988.66
  4. Step 4: Simplify right side
    121,192.56x = 21,234,220,934.48
  5. Step 5: Solve for x
    x = 21,234,220,934.48/121,192.56
  6. Step 6: Final answer
    x = 175,210.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.