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Finding the Fourth Proportional to 230,191.90, 317,680.76 and 139,551.69

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Solution

The fourth proportional to 230,191.90, 317,680.76 and 139,551.69 is: 192,590.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,191.90 : 317,680.76 = 139,551.69 : x
  2. Step 2: Convert to fraction form
    230,191.90/317,680.76 = 139,551.69/x
  3. Step 3: Cross multiply
    230,191.90x = 317,680.76 × 139,551.69
  4. Step 4: Simplify right side
    230,191.90x = 44,332,886,938.48
  5. Step 5: Solve for x
    x = 44,332,886,938.48/230,191.90
  6. Step 6: Final answer
    x = 192,590.99

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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.