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Finding the Fourth Proportional to 176,590.60, 265,031.70 and 81,966.40

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Solution

The fourth proportional to 176,590.60, 265,031.70 and 81,966.40 is: 123,017.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,590.60 : 265,031.70 = 81,966.40 : x
  2. Step 2: Convert to fraction form
    176,590.60/265,031.70 = 81,966.40/x
  3. Step 3: Cross multiply
    176,590.60x = 265,031.70 × 81,966.40
  4. Step 4: Simplify right side
    176,590.60x = 21,723,694,334.88
  5. Step 5: Solve for x
    x = 21,723,694,334.88/176,590.60
  6. Step 6: Final answer
    x = 123,017.27

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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.