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Finding the Fourth Proportional to 92,889.64, 139,328.99 and 30,560.14

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Solution

The fourth proportional to 92,889.64, 139,328.99 and 30,560.14 is: 45,838.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,889.64 : 139,328.99 = 30,560.14 : x
  2. Step 2: Convert to fraction form
    92,889.64/139,328.99 = 30,560.14/x
  3. Step 3: Cross multiply
    92,889.64x = 139,328.99 × 30,560.14
  4. Step 4: Simplify right side
    92,889.64x = 4,257,913,440.46
  5. Step 5: Solve for x
    x = 4,257,913,440.46/92,889.64
  6. Step 6: Final answer
    x = 45,838.41

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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.