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Finding the Fourth Proportional to 201,648.48, 278,264.58 and 111,002.04

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Solution

The fourth proportional to 201,648.48, 278,264.58 and 111,002.04 is: 153,177.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,648.48 : 278,264.58 = 111,002.04 : x
  2. Step 2: Convert to fraction form
    201,648.48/278,264.58 = 111,002.04/x
  3. Step 3: Cross multiply
    201,648.48x = 278,264.58 × 111,002.04
  4. Step 4: Simplify right side
    201,648.48x = 30,887,936,039.74
  5. Step 5: Solve for x
    x = 30,887,936,039.74/201,648.48
  6. Step 6: Final answer
    x = 153,177.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.