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Finding the Fourth Proportional to 203,545.59, 280,709.01 and 127,071.74

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Solution

The fourth proportional to 203,545.59, 280,709.01 and 127,071.74 is: 175,244.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,545.59 : 280,709.01 = 127,071.74 : x
  2. Step 2: Convert to fraction form
    203,545.59/280,709.01 = 127,071.74/x
  3. Step 3: Cross multiply
    203,545.59x = 280,709.01 × 127,071.74
  4. Step 4: Simplify right side
    203,545.59x = 35,670,180,930.83
  5. Step 5: Solve for x
    x = 35,670,180,930.83/203,545.59
  6. Step 6: Final answer
    x = 175,244.18

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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.