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Finding the Fourth Proportional to 161,806.52, 242,670.84 and 49,487.72

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Solution

The fourth proportional to 161,806.52, 242,670.84 and 49,487.72 is: 74,219.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,806.52 : 242,670.84 = 49,487.72 : x
  2. Step 2: Convert to fraction form
    161,806.52/242,670.84 = 49,487.72/x
  3. Step 3: Cross multiply
    161,806.52x = 242,670.84 × 49,487.72
  4. Step 4: Simplify right side
    161,806.52x = 12,009,225,368.73
  5. Step 5: Solve for x
    x = 12,009,225,368.73/161,806.52
  6. Step 6: Final answer
    x = 74,219.66

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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.