Home / 236,306.94-354,342.15-78,480.06

Finding the Fourth Proportional to 236,306.94, 354,342.15 and 78,480.06

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Solution

The fourth proportional to 236,306.94, 354,342.15 and 78,480.06 is: 117,680.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,306.94 : 354,342.15 = 78,480.06 : x
  2. Step 2: Convert to fraction form
    236,306.94/354,342.15 = 78,480.06/x
  3. Step 3: Cross multiply
    236,306.94x = 354,342.15 × 78,480.06
  4. Step 4: Simplify right side
    236,306.94x = 27,808,793,192.53
  5. Step 5: Solve for x
    x = 27,808,793,192.53/236,306.94
  6. Step 6: Final answer
    x = 117,680.81

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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.