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Finding the Fourth Proportional to 434,392.17, 651,690.32 and 134,857.41

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Solution

The fourth proportional to 434,392.17, 651,690.32 and 134,857.41 is: 202,317.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,392.17 : 651,690.32 = 134,857.41 : x
  2. Step 2: Convert to fraction form
    434,392.17/651,690.32 = 134,857.41/x
  3. Step 3: Cross multiply
    434,392.17x = 651,690.32 × 134,857.41
  4. Step 4: Simplify right side
    434,392.17x = 87,885,268,002.98
  5. Step 5: Solve for x
    x = 87,885,268,002.98/434,392.17
  6. Step 6: Final answer
    x = 202,317.80

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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.