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Finding the Fourth Proportional to 121,606.52, 181,186.66 and 114,815.88

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Solution

The fourth proportional to 121,606.52, 181,186.66 and 114,815.88 is: 171,069.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,606.52 : 181,186.66 = 114,815.88 : x
  2. Step 2: Convert to fraction form
    121,606.52/181,186.66 = 114,815.88/x
  3. Step 3: Cross multiply
    121,606.52x = 181,186.66 × 114,815.88
  4. Step 4: Simplify right side
    121,606.52x = 20,803,105,955.68
  5. Step 5: Solve for x
    x = 20,803,105,955.68/121,606.52
  6. Step 6: Final answer
    x = 171,069.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.