Home / 352,733.55-528,947.23-128,019.30

Finding the Fourth Proportional to 352,733.55, 528,947.23 and 128,019.30

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Solution

The fourth proportional to 352,733.55, 528,947.23 and 128,019.30 is: 191,973.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,733.55 : 528,947.23 = 128,019.30 : x
  2. Step 2: Convert to fraction form
    352,733.55/528,947.23 = 128,019.30/x
  3. Step 3: Cross multiply
    352,733.55x = 528,947.23 × 128,019.30
  4. Step 4: Simplify right side
    352,733.55x = 67,715,454,121.54
  5. Step 5: Solve for x
    x = 67,715,454,121.54/352,733.55
  6. Step 6: Final answer
    x = 191,973.39

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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.