Home / 352,395.12-528,587.94-86,157.92

Finding the Fourth Proportional to 352,395.12, 528,587.94 and 86,157.92

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Solution

The fourth proportional to 352,395.12, 528,587.94 and 86,157.92 is: 129,235.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,395.12 : 528,587.94 = 86,157.92 : x
  2. Step 2: Convert to fraction form
    352,395.12/528,587.94 = 86,157.92/x
  3. Step 3: Cross multiply
    352,395.12x = 528,587.94 × 86,157.92
  4. Step 4: Simplify right side
    352,395.12x = 45,542,037,447.48
  5. Step 5: Solve for x
    x = 45,542,037,447.48/352,395.12
  6. Step 6: Final answer
    x = 129,235.72

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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.