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Finding the Fourth Proportional to 401,008.92, 601,386.18 and 131,076.02

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Solution

The fourth proportional to 401,008.92, 601,386.18 and 131,076.02 is: 196,572.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,008.92 : 601,386.18 = 131,076.02 : x
  2. Step 2: Convert to fraction form
    401,008.92/601,386.18 = 131,076.02/x
  3. Step 3: Cross multiply
    401,008.92x = 601,386.18 × 131,076.02
  4. Step 4: Simplify right side
    401,008.92x = 78,827,306,957.40
  5. Step 5: Solve for x
    x = 78,827,306,957.40/401,008.92
  6. Step 6: Final answer
    x = 196,572.45

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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.