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Finding the Fourth Proportional to 161,327.60, 241,645.80 and 105,340.40

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Solution

The fourth proportional to 161,327.60, 241,645.80 and 105,340.40 is: 157,784.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,327.60 : 241,645.80 = 105,340.40 : x
  2. Step 2: Convert to fraction form
    161,327.60/241,645.80 = 105,340.40/x
  3. Step 3: Cross multiply
    161,327.60x = 241,645.80 × 105,340.40
  4. Step 4: Simplify right side
    161,327.60x = 25,455,065,230.32
  5. Step 5: Solve for x
    x = 25,455,065,230.32/161,327.60
  6. Step 6: Final answer
    x = 157,784.94

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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.