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Finding the Fourth Proportional to 161,551.94, 242,428.95 and 61,720.65

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Solution

The fourth proportional to 161,551.94, 242,428.95 and 61,720.65 is: 92,619.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,551.94 : 242,428.95 = 61,720.65 : x
  2. Step 2: Convert to fraction form
    161,551.94/242,428.95 = 61,720.65/x
  3. Step 3: Cross multiply
    161,551.94x = 242,428.95 × 61,720.65
  4. Step 4: Simplify right side
    161,551.94x = 14,962,872,372.82
  5. Step 5: Solve for x
    x = 14,962,872,372.82/161,551.94
  6. Step 6: Final answer
    x = 92,619.58

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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.