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Finding the Fourth Proportional to 202,770.57, 279,808.93 and 112,109.84

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Solution

The fourth proportional to 202,770.57, 279,808.93 and 112,109.84 is: 154,703.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,770.57 : 279,808.93 = 112,109.84 : x
  2. Step 2: Convert to fraction form
    202,770.57/279,808.93 = 112,109.84/x
  3. Step 3: Cross multiply
    202,770.57x = 279,808.93 × 112,109.84
  4. Step 4: Simplify right side
    202,770.57x = 31,369,332,693.55
  5. Step 5: Solve for x
    x = 31,369,332,693.55/202,770.57
  6. Step 6: Final answer
    x = 154,703.58

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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.