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Finding the Fourth Proportional to 403,567.72, 605,386.41 and 104,045.72

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Solution

The fourth proportional to 403,567.72, 605,386.41 and 104,045.72 is: 156,077.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,567.72 : 605,386.41 = 104,045.72 : x
  2. Step 2: Convert to fraction form
    403,567.72/605,386.41 = 104,045.72/x
  3. Step 3: Cross multiply
    403,567.72x = 605,386.41 × 104,045.72
  4. Step 4: Simplify right side
    403,567.72x = 62,987,861,489.56
  5. Step 5: Solve for x
    x = 62,987,861,489.56/403,567.72
  6. Step 6: Final answer
    x = 156,077.55

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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.