Home / 282,009.20-423,071.40-95,039.60

Finding the Fourth Proportional to 282,009.20, 423,071.40 and 95,039.60

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Solution

The fourth proportional to 282,009.20, 423,071.40 and 95,039.60 is: 142,578.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,009.20 : 423,071.40 = 95,039.60 : x
  2. Step 2: Convert to fraction form
    282,009.20/423,071.40 = 95,039.60/x
  3. Step 3: Cross multiply
    282,009.20x = 423,071.40 × 95,039.60
  4. Step 4: Simplify right side
    282,009.20x = 40,208,536,627.44
  5. Step 5: Solve for x
    x = 40,208,536,627.44/282,009.20
  6. Step 6: Final answer
    x = 142,578.81

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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.