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Finding the Fourth Proportional to 161,013.60, 241,750.80 and 91,029.60

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Solution

The fourth proportional to 161,013.60, 241,750.80 and 91,029.60 is: 136,674.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,013.60 : 241,750.80 = 91,029.60 : x
  2. Step 2: Convert to fraction form
    161,013.60/241,750.80 = 91,029.60/x
  3. Step 3: Cross multiply
    161,013.60x = 241,750.80 × 91,029.60
  4. Step 4: Simplify right side
    161,013.60x = 22,006,478,623.68
  5. Step 5: Solve for x
    x = 22,006,478,623.68/161,013.60
  6. Step 6: Final answer
    x = 136,674.66

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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.