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Finding the Fourth Proportional to 177,046.63, 265,376.72 and 87,151.21

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Solution

The fourth proportional to 177,046.63, 265,376.72 and 87,151.21 is: 130,631.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,046.63 : 265,376.72 = 87,151.21 : x
  2. Step 2: Convert to fraction form
    177,046.63/265,376.72 = 87,151.21/x
  3. Step 3: Cross multiply
    177,046.63x = 265,376.72 × 87,151.21
  4. Step 4: Simplify right side
    177,046.63x = 23,127,901,808.27
  5. Step 5: Solve for x
    x = 23,127,901,808.27/177,046.63
  6. Step 6: Final answer
    x = 130,631.70

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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.