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Finding the Fourth Proportional to 158,523.86, 218,767.02 and 89,607.80

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Solution

The fourth proportional to 158,523.86, 218,767.02 and 89,607.80 is: 123,661.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,523.86 : 218,767.02 = 89,607.80 : x
  2. Step 2: Convert to fraction form
    158,523.86/218,767.02 = 89,607.80/x
  3. Step 3: Cross multiply
    158,523.86x = 218,767.02 × 89,607.80
  4. Step 4: Simplify right side
    158,523.86x = 19,603,231,374.76
  5. Step 5: Solve for x
    x = 19,603,231,374.76/158,523.86
  6. Step 6: Final answer
    x = 123,661.08

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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.