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Finding the Fourth Proportional to 98,916.44, 147,950.69 and 91,737.14

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Solution

The fourth proportional to 98,916.44, 147,950.69 and 91,737.14 is: 137,212.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,916.44 : 147,950.69 = 91,737.14 : x
  2. Step 2: Convert to fraction form
    98,916.44/147,950.69 = 91,737.14/x
  3. Step 3: Cross multiply
    98,916.44x = 147,950.69 × 91,737.14
  4. Step 4: Simplify right side
    98,916.44x = 13,572,571,963.19
  5. Step 5: Solve for x
    x = 13,572,571,963.19/98,916.44
  6. Step 6: Final answer
    x = 137,212.51

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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.