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Finding the Fourth Proportional to 223,855.91, 308,905.55 and 127,061.75

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Solution

The fourth proportional to 223,855.91, 308,905.55 and 127,061.75 is: 175,336.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,855.91 : 308,905.55 = 127,061.75 : x
  2. Step 2: Convert to fraction form
    223,855.91/308,905.55 = 127,061.75/x
  3. Step 3: Cross multiply
    223,855.91x = 308,905.55 × 127,061.75
  4. Step 4: Simplify right side
    223,855.91x = 39,250,077,587.88
  5. Step 5: Solve for x
    x = 39,250,077,587.88/223,855.91
  6. Step 6: Final answer
    x = 175,336.35

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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.