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Finding the Fourth Proportional to 193,237.65, 289,876.35 and 66,877.67

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Solution

The fourth proportional to 193,237.65, 289,876.35 and 66,877.67 is: 100,323.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,237.65 : 289,876.35 = 66,877.67 : x
  2. Step 2: Convert to fraction form
    193,237.65/289,876.35 = 66,877.67/x
  3. Step 3: Cross multiply
    193,237.65x = 289,876.35 × 66,877.67
  4. Step 4: Simplify right side
    193,237.65x = 19,386,253,426.72
  5. Step 5: Solve for x
    x = 19,386,253,426.72/193,237.65
  6. Step 6: Final answer
    x = 100,323.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.