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Finding the Fourth Proportional to 437,418.76, 656,128.16 and 104,994.76

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Solution

The fourth proportional to 437,418.76, 656,128.16 and 104,994.76 is: 157,492.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,418.76 : 656,128.16 = 104,994.76 : x
  2. Step 2: Convert to fraction form
    437,418.76/656,128.16 = 104,994.76/x
  3. Step 3: Cross multiply
    437,418.76x = 656,128.16 × 104,994.76
  4. Step 4: Simplify right side
    437,418.76x = 68,890,018,688.44
  5. Step 5: Solve for x
    x = 68,890,018,688.44/437,418.76
  6. Step 6: Final answer
    x = 157,492.14

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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.