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Finding the Fourth Proportional to 403,792.34, 605,690.82 and 104,252.45

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Solution

The fourth proportional to 403,792.34, 605,690.82 and 104,252.45 is: 156,379.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,792.34 : 605,690.82 = 104,252.45 : x
  2. Step 2: Convert to fraction form
    403,792.34/605,690.82 = 104,252.45/x
  3. Step 3: Cross multiply
    403,792.34x = 605,690.82 × 104,252.45
  4. Step 4: Simplify right side
    403,792.34x = 63,144,748,899.05
  5. Step 5: Solve for x
    x = 63,144,748,899.05/403,792.34
  6. Step 6: Final answer
    x = 156,379.27

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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.