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Finding the Fourth Proportional to 160,835.19, 240,871.42 and 127,447.90

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Solution

The fourth proportional to 160,835.19, 240,871.42 and 127,447.90 is: 190,869.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,835.19 : 240,871.42 = 127,447.90 : x
  2. Step 2: Convert to fraction form
    160,835.19/240,871.42 = 127,447.90/x
  3. Step 3: Cross multiply
    160,835.19x = 240,871.42 × 127,447.90
  4. Step 4: Simplify right side
    160,835.19x = 30,698,555,444.66
  5. Step 5: Solve for x
    x = 30,698,555,444.66/160,835.19
  6. Step 6: Final answer
    x = 190,869.65

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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.