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Finding the Fourth Proportional to 275,685.20, 413,527.80 and 117,929.60

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Solution

The fourth proportional to 275,685.20, 413,527.80 and 117,929.60 is: 176,894.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,685.20 : 413,527.80 = 117,929.60 : x
  2. Step 2: Convert to fraction form
    275,685.20/413,527.80 = 117,929.60/x
  3. Step 3: Cross multiply
    275,685.20x = 413,527.80 × 117,929.60
  4. Step 4: Simplify right side
    275,685.20x = 48,767,168,042.88
  5. Step 5: Solve for x
    x = 48,767,168,042.88/275,685.20
  6. Step 6: Final answer
    x = 176,894.40

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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.