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Finding the Fourth Proportional to 175,541.60, 263,139.60 and 86,808.80

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Solution

The fourth proportional to 175,541.60, 263,139.60 and 86,808.80 is: 130,127.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,541.60 : 263,139.60 = 86,808.80 : x
  2. Step 2: Convert to fraction form
    175,541.60/263,139.60 = 86,808.80/x
  3. Step 3: Cross multiply
    175,541.60x = 263,139.60 × 86,808.80
  4. Step 4: Simplify right side
    175,541.60x = 22,842,832,908.48
  5. Step 5: Solve for x
    x = 22,842,832,908.48/175,541.60
  6. Step 6: Final answer
    x = 130,127.75

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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.