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Finding the Fourth Proportional to 218,455.61, 327,810.77 and 92,088.11

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Solution

The fourth proportional to 218,455.61, 327,810.77 and 92,088.11 is: 138,185.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,455.61 : 327,810.77 = 92,088.11 : x
  2. Step 2: Convert to fraction form
    218,455.61/327,810.77 = 92,088.11/x
  3. Step 3: Cross multiply
    218,455.61x = 327,810.77 × 92,088.11
  4. Step 4: Simplify right side
    218,455.61x = 30,187,472,147.45
  5. Step 5: Solve for x
    x = 30,187,472,147.45/218,455.61
  6. Step 6: Final answer
    x = 138,185.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.