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Finding the Fourth Proportional to 352,302.44, 528,451.80 and 86,064.44

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Solution

The fourth proportional to 352,302.44, 528,451.80 and 86,064.44 is: 129,096.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,302.44 : 528,451.80 = 86,064.44 : x
  2. Step 2: Convert to fraction form
    352,302.44/528,451.80 = 86,064.44/x
  3. Step 3: Cross multiply
    352,302.44x = 528,451.80 × 86,064.44
  4. Step 4: Simplify right side
    352,302.44x = 45,480,908,233.99
  5. Step 5: Solve for x
    x = 45,480,908,233.99/352,302.44
  6. Step 6: Final answer
    x = 129,096.21

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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.