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Finding the Fourth Proportional to 177,066.20, 266,117.70 and 154,256.60

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Solution

The fourth proportional to 177,066.20, 266,117.70 and 154,256.60 is: 231,836.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,066.20 : 266,117.70 = 154,256.60 : x
  2. Step 2: Convert to fraction form
    177,066.20/266,117.70 = 154,256.60/x
  3. Step 3: Cross multiply
    177,066.20x = 266,117.70 × 154,256.60
  4. Step 4: Simplify right side
    177,066.20x = 41,050,411,601.82
  5. Step 5: Solve for x
    x = 41,050,411,601.82/177,066.20
  6. Step 6: Final answer
    x = 231,836.52

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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.