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Finding the Fourth Proportional to 183,855.60, 275,491.80 and 121,453.20

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Solution

The fourth proportional to 183,855.60, 275,491.80 and 121,453.20 is: 181,987.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,855.60 : 275,491.80 = 121,453.20 : x
  2. Step 2: Convert to fraction form
    183,855.60/275,491.80 = 121,453.20/x
  3. Step 3: Cross multiply
    183,855.60x = 275,491.80 × 121,453.20
  4. Step 4: Simplify right side
    183,855.60x = 33,459,360,683.76
  5. Step 5: Solve for x
    x = 33,459,360,683.76/183,855.60
  6. Step 6: Final answer
    x = 181,987.17

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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.