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Finding the Fourth Proportional to 147,275.01, 203,239.53 and 80,207.01

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Solution

The fourth proportional to 147,275.01, 203,239.53 and 80,207.01 is: 110,685.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,275.01 : 203,239.53 = 80,207.01 : x
  2. Step 2: Convert to fraction form
    147,275.01/203,239.53 = 80,207.01/x
  3. Step 3: Cross multiply
    147,275.01x = 203,239.53 × 80,207.01
  4. Step 4: Simplify right side
    147,275.01x = 16,301,235,015.11
  5. Step 5: Solve for x
    x = 16,301,235,015.11/147,275.01
  6. Step 6: Final answer
    x = 110,685.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.