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Finding the Fourth Proportional to 153,352.71, 229,722.75 and 121,816.17

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Solution

The fourth proportional to 153,352.71, 229,722.75 and 121,816.17 is: 182,480.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,352.71 : 229,722.75 = 121,816.17 : x
  2. Step 2: Convert to fraction form
    153,352.71/229,722.75 = 121,816.17/x
  3. Step 3: Cross multiply
    153,352.71x = 229,722.75 × 121,816.17
  4. Step 4: Simplify right side
    153,352.71x = 27,983,945,566.87
  5. Step 5: Solve for x
    x = 27,983,945,566.87/153,352.71
  6. Step 6: Final answer
    x = 182,480.93

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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.