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Finding the Fourth Proportional to 124,460.70, 186,345.45 and 121,004.70

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Solution

The fourth proportional to 124,460.70, 186,345.45 and 121,004.70 is: 181,171.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,460.70 : 186,345.45 = 121,004.70 : x
  2. Step 2: Convert to fraction form
    124,460.70/186,345.45 = 121,004.70/x
  3. Step 3: Cross multiply
    124,460.70x = 186,345.45 × 121,004.70
  4. Step 4: Simplify right side
    124,460.70x = 22,548,675,273.62
  5. Step 5: Solve for x
    x = 22,548,675,273.62/124,460.70
  6. Step 6: Final answer
    x = 181,171.05

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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.