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Finding the Fourth Proportional to 161,699.68, 242,541.42 and 61,907.68

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Solution

The fourth proportional to 161,699.68, 242,541.42 and 61,907.68 is: 92,858.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,699.68 : 242,541.42 = 61,907.68 : x
  2. Step 2: Convert to fraction form
    161,699.68/242,541.42 = 61,907.68/x
  3. Step 3: Cross multiply
    161,699.68x = 242,541.42 × 61,907.68
  4. Step 4: Simplify right side
    161,699.68x = 15,015,176,616.11
  5. Step 5: Solve for x
    x = 15,015,176,616.11/161,699.68
  6. Step 6: Final answer
    x = 92,858.42

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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.