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Finding the Fourth Proportional to 401,652.06, 602,057.70 and 135,320.52

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Solution

The fourth proportional to 401,652.06, 602,057.70 and 135,320.52 is: 202,839.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,652.06 : 602,057.70 = 135,320.52 : x
  2. Step 2: Convert to fraction form
    401,652.06/602,057.70 = 135,320.52/x
  3. Step 3: Cross multiply
    401,652.06x = 602,057.70 × 135,320.52
  4. Step 4: Simplify right side
    401,652.06x = 81,470,761,034.00
  5. Step 5: Solve for x
    x = 81,470,761,034.00/401,652.06
  6. Step 6: Final answer
    x = 202,839.15

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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.