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Finding the Fourth Proportional to 269,780.76, 372,314.07 and 155,096.10

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Solution

The fourth proportional to 269,780.76, 372,314.07 and 155,096.10 is: 214,042.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,780.76 : 372,314.07 = 155,096.10 : x
  2. Step 2: Convert to fraction form
    269,780.76/372,314.07 = 155,096.10/x
  3. Step 3: Cross multiply
    269,780.76x = 372,314.07 × 155,096.10
  4. Step 4: Simplify right side
    269,780.76x = 57,744,460,232.13
  5. Step 5: Solve for x
    x = 57,744,460,232.13/269,780.76
  6. Step 6: Final answer
    x = 214,042.17

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1.5x scale

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.