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Finding the Fourth Proportional to 202,664.80, 279,675.60 and 112,026.40

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Solution

The fourth proportional to 202,664.80, 279,675.60 and 112,026.40 is: 154,595.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,664.80 : 279,675.60 = 112,026.40 : x
  2. Step 2: Convert to fraction form
    202,664.80/279,675.60 = 112,026.40/x
  3. Step 3: Cross multiply
    202,664.80x = 279,675.60 × 112,026.40
  4. Step 4: Simplify right side
    202,664.80x = 31,331,050,635.84
  5. Step 5: Solve for x
    x = 31,331,050,635.84/202,664.80
  6. Step 6: Final answer
    x = 154,595.42

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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.