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Finding the Fourth Proportional to 155,353.80, 231,170.01 and 154,828.92

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Solution

The fourth proportional to 155,353.80, 231,170.01 and 154,828.92 is: 230,388.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,353.80 : 231,170.01 = 154,828.92 : x
  2. Step 2: Convert to fraction form
    155,353.80/231,170.01 = 154,828.92/x
  3. Step 3: Cross multiply
    155,353.80x = 231,170.01 × 154,828.92
  4. Step 4: Simplify right side
    155,353.80x = 35,791,802,984.69
  5. Step 5: Solve for x
    x = 35,791,802,984.69/155,353.80
  6. Step 6: Final answer
    x = 230,388.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.