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Finding the Fourth Proportional to 161,787.96, 242,681.94 and 161,554.32

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Solution

The fourth proportional to 161,787.96, 242,681.94 and 161,554.32 is: 242,331.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,787.96 : 242,681.94 = 161,554.32 : x
  2. Step 2: Convert to fraction form
    161,787.96/242,681.94 = 161,554.32/x
  3. Step 3: Cross multiply
    161,787.96x = 242,681.94 × 161,554.32
  4. Step 4: Simplify right side
    161,787.96x = 39,206,315,792.98
  5. Step 5: Solve for x
    x = 39,206,315,792.98/161,787.96
  6. Step 6: Final answer
    x = 242,331.48

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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.