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Finding the Fourth Proportional to 117,916.94, 176,838.96 and 39,014.84

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Solution

The fourth proportional to 117,916.94, 176,838.96 and 39,014.84 is: 58,510.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,916.94 : 176,838.96 = 39,014.84 : x
  2. Step 2: Convert to fraction form
    117,916.94/176,838.96 = 39,014.84/x
  3. Step 3: Cross multiply
    117,916.94x = 176,838.96 × 39,014.84
  4. Step 4: Simplify right side
    117,916.94x = 6,899,343,730.17
  5. Step 5: Solve for x
    x = 6,899,343,730.17/117,916.94
  6. Step 6: Final answer
    x = 58,510.20

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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.