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Finding the Fourth Proportional to 192,532.65, 265,613.70 and 128,890.95

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Solution

The fourth proportional to 192,532.65, 265,613.70 and 128,890.95 is: 177,815.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,532.65 : 265,613.70 = 128,890.95 : x
  2. Step 2: Convert to fraction form
    192,532.65/265,613.70 = 128,890.95/x
  3. Step 3: Cross multiply
    192,532.65x = 265,613.70 × 128,890.95
  4. Step 4: Simplify right side
    192,532.65x = 34,235,203,605.41
  5. Step 5: Solve for x
    x = 34,235,203,605.41/192,532.65
  6. Step 6: Final answer
    x = 177,815.05

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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.