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Finding the Fourth Proportional to 223,779.27, 308,815.25 and 123,177.27

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Solution

The fourth proportional to 223,779.27, 308,815.25 and 123,177.27 is: 169,984.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,779.27 : 308,815.25 = 123,177.27 : x
  2. Step 2: Convert to fraction form
    223,779.27/308,815.25 = 123,177.27/x
  3. Step 3: Cross multiply
    223,779.27x = 308,815.25 × 123,177.27
  4. Step 4: Simplify right side
    223,779.27x = 38,039,018,813.48
  5. Step 5: Solve for x
    x = 38,039,018,813.48/223,779.27
  6. Step 6: Final answer
    x = 169,984.55

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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.