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Finding the Fourth Proportional to 107,360.80, 161,069.04 and 40,802.08

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Solution

The fourth proportional to 107,360.80, 161,069.04 and 40,802.08 is: 61,213.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,360.80 : 161,069.04 = 40,802.08 : x
  2. Step 2: Convert to fraction form
    107,360.80/161,069.04 = 40,802.08/x
  3. Step 3: Cross multiply
    107,360.80x = 161,069.04 × 40,802.08
  4. Step 4: Simplify right side
    107,360.80x = 6,571,951,855.60
  5. Step 5: Solve for x
    x = 6,571,951,855.60/107,360.80
  6. Step 6: Final answer
    x = 61,213.70

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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.