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Finding the Fourth Proportional to 452,752.86, 679,126.78 and 115,792.95

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Solution

The fourth proportional to 452,752.86, 679,126.78 and 115,792.95 is: 173,688.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,752.86 : 679,126.78 = 115,792.95 : x
  2. Step 2: Convert to fraction form
    452,752.86/679,126.78 = 115,792.95/x
  3. Step 3: Cross multiply
    452,752.86x = 679,126.78 × 115,792.95
  4. Step 4: Simplify right side
    452,752.86x = 78,638,093,280.20
  5. Step 5: Solve for x
    x = 78,638,093,280.20/452,752.86
  6. Step 6: Final answer
    x = 173,688.78

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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.