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Finding the Fourth Proportional to 161,953.30, 242,601.90 and 91,750.60

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Solution

The fourth proportional to 161,953.30, 242,601.90 and 91,750.60 is: 137,440.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,953.30 : 242,601.90 = 91,750.60 : x
  2. Step 2: Convert to fraction form
    161,953.30/242,601.90 = 91,750.60/x
  3. Step 3: Cross multiply
    161,953.30x = 242,601.90 × 91,750.60
  4. Step 4: Simplify right side
    161,953.30x = 22,258,869,886.14
  5. Step 5: Solve for x
    x = 22,258,869,886.14/161,953.30
  6. Step 6: Final answer
    x = 137,440.05

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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.