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Finding the Fourth Proportional to 177,334.60, 266,001.90 and 121,347.40

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Solution

The fourth proportional to 177,334.60, 266,001.90 and 121,347.40 is: 182,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,334.60 : 266,001.90 = 121,347.40 : x
  2. Step 2: Convert to fraction form
    177,334.60/266,001.90 = 121,347.40/x
  3. Step 3: Cross multiply
    177,334.60x = 266,001.90 × 121,347.40
  4. Step 4: Simplify right side
    177,334.60x = 32,278,638,960.06
  5. Step 5: Solve for x
    x = 32,278,638,960.06/177,334.60
  6. Step 6: Final answer
    x = 182,021.10

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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.