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Finding the Fourth Proportional to 157,399.16, 218,323.24 and 151,724.84

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Solution

The fourth proportional to 157,399.16, 218,323.24 and 151,724.84 is: 210,452.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,399.16 : 218,323.24 = 151,724.84 : x
  2. Step 2: Convert to fraction form
    157,399.16/218,323.24 = 151,724.84/x
  3. Step 3: Cross multiply
    157,399.16x = 218,323.24 × 151,724.84
  4. Step 4: Simplify right side
    157,399.16x = 33,125,057,898.66
  5. Step 5: Solve for x
    x = 33,125,057,898.66/157,399.16
  6. Step 6: Final answer
    x = 210,452.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.