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Finding the Fourth Proportional to 202,646.56, 279,666.73 and 112,000.57

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Solution

The fourth proportional to 202,646.56, 279,666.73 and 112,000.57 is: 154,568.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,646.56 : 279,666.73 = 112,000.57 : x
  2. Step 2: Convert to fraction form
    202,646.56/279,666.73 = 112,000.57/x
  3. Step 3: Cross multiply
    202,646.56x = 279,666.73 × 112,000.57
  4. Step 4: Simplify right side
    202,646.56x = 31,322,834,184.00
  5. Step 5: Solve for x
    x = 31,322,834,184.00/202,646.56
  6. Step 6: Final answer
    x = 154,568.79

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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.