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Finding the Fourth Proportional to 400,655.67, 600,981.24 and 101,135.01

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Solution

The fourth proportional to 400,655.67, 600,981.24 and 101,135.01 is: 151,701.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,655.67 : 600,981.24 = 101,135.01 : x
  2. Step 2: Convert to fraction form
    400,655.67/600,981.24 = 101,135.01/x
  3. Step 3: Cross multiply
    400,655.67x = 600,981.24 × 101,135.01
  4. Step 4: Simplify right side
    400,655.67x = 60,780,243,717.21
  5. Step 5: Solve for x
    x = 60,780,243,717.21/400,655.67
  6. Step 6: Final answer
    x = 151,701.94

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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.