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Finding the Fourth Proportional to 189,787.71, 284,681.61 and 49,545.12

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Solution

The fourth proportional to 189,787.71, 284,681.61 and 49,545.12 is: 74,317.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,787.71 : 284,681.61 = 49,545.12 : x
  2. Step 2: Convert to fraction form
    189,787.71/284,681.61 = 49,545.12/x
  3. Step 3: Cross multiply
    189,787.71x = 284,681.61 × 49,545.12
  4. Step 4: Simplify right side
    189,787.71x = 14,104,584,529.24
  5. Step 5: Solve for x
    x = 14,104,584,529.24/189,787.71
  6. Step 6: Final answer
    x = 74,317.69

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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.