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Finding the Fourth Proportional to 60,908.51, 91,340.01 and 20,916.14

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Solution

The fourth proportional to 60,908.51, 91,340.01 and 20,916.14 is: 31,366.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,908.51 : 91,340.01 = 20,916.14 : x
  2. Step 2: Convert to fraction form
    60,908.51/91,340.01 = 20,916.14/x
  3. Step 3: Cross multiply
    60,908.51x = 91,340.01 × 20,916.14
  4. Step 4: Simplify right side
    60,908.51x = 1,910,480,436.76
  5. Step 5: Solve for x
    x = 1,910,480,436.76/60,908.51
  6. Step 6: Final answer
    x = 31,366.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.