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Finding the Fourth Proportional to 145,594.44, 218,427.92 and 115,721.40

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Solution

The fourth proportional to 145,594.44, 218,427.92 and 115,721.40 is: 173,610.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,594.44 : 218,427.92 = 115,721.40 : x
  2. Step 2: Convert to fraction form
    145,594.44/218,427.92 = 115,721.40/x
  3. Step 3: Cross multiply
    145,594.44x = 218,427.92 × 115,721.40
  4. Step 4: Simplify right side
    145,594.44x = 25,276,784,701.49
  5. Step 5: Solve for x
    x = 25,276,784,701.49/145,594.44
  6. Step 6: Final answer
    x = 173,610.92

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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.