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Finding the Fourth Proportional to 158,523.15, 218,836.74 and 98,133.24

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Solution

The fourth proportional to 158,523.15, 218,836.74 and 98,133.24 is: 135,470.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,523.15 : 218,836.74 = 98,133.24 : x
  2. Step 2: Convert to fraction form
    158,523.15/218,836.74 = 98,133.24/x
  3. Step 3: Cross multiply
    158,523.15x = 218,836.74 × 98,133.24
  4. Step 4: Simplify right side
    158,523.15x = 21,475,158,327.24
  5. Step 5: Solve for x
    x = 21,475,158,327.24/158,523.15
  6. Step 6: Final answer
    x = 135,470.17

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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.