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Finding the Fourth Proportional to 202,462.95, 279,401.54 and 111,818.64

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Solution

The fourth proportional to 202,462.95, 279,401.54 and 111,818.64 is: 154,311.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,462.95 : 279,401.54 = 111,818.64 : x
  2. Step 2: Convert to fraction form
    202,462.95/279,401.54 = 111,818.64/x
  3. Step 3: Cross multiply
    202,462.95x = 279,401.54 × 111,818.64
  4. Step 4: Simplify right side
    202,462.95x = 31,242,299,657.61
  5. Step 5: Solve for x
    x = 31,242,299,657.61/202,462.95
  6. Step 6: Final answer
    x = 154,311.19

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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.