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Finding the Fourth Proportional to 202,257.60, 279,113.64 and 111,614.40

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Solution

The fourth proportional to 202,257.60, 279,113.64 and 111,614.40 is: 154,026.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,257.60 : 279,113.64 = 111,614.40 : x
  2. Step 2: Convert to fraction form
    202,257.60/279,113.64 = 111,614.40/x
  3. Step 3: Cross multiply
    202,257.60x = 279,113.64 × 111,614.40
  4. Step 4: Simplify right side
    202,257.60x = 31,153,101,460.42
  5. Step 5: Solve for x
    x = 31,153,101,460.42/202,257.60
  6. Step 6: Final answer
    x = 154,026.85

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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.