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Finding the Fourth Proportional to 145,879.97, 218,444.83 and 117,282.52

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Solution

The fourth proportional to 145,879.97, 218,444.83 and 117,282.52 is: 175,622.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,879.97 : 218,444.83 = 117,282.52 : x
  2. Step 2: Convert to fraction form
    145,879.97/218,444.83 = 117,282.52/x
  3. Step 3: Cross multiply
    145,879.97x = 218,444.83 × 117,282.52
  4. Step 4: Simplify right side
    145,879.97x = 25,619,759,304.05
  5. Step 5: Solve for x
    x = 25,619,759,304.05/145,879.97
  6. Step 6: Final answer
    x = 175,622.18

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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.