Home / 261,831.54-392,747.40-74,843.04

Finding the Fourth Proportional to 261,831.54, 392,747.40 and 74,843.04

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Solution

The fourth proportional to 261,831.54, 392,747.40 and 74,843.04 is: 112,264.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,831.54 : 392,747.40 = 74,843.04 : x
  2. Step 2: Convert to fraction form
    261,831.54/392,747.40 = 74,843.04/x
  3. Step 3: Cross multiply
    261,831.54x = 392,747.40 × 74,843.04
  4. Step 4: Simplify right side
    261,831.54x = 29,394,409,368.10
  5. Step 5: Solve for x
    x = 29,394,409,368.10/261,831.54
  6. Step 6: Final answer
    x = 112,264.59

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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.