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Finding the Fourth Proportional to 352,258.48, 528,419.85 and 99,542.62

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Solution

The fourth proportional to 352,258.48, 528,419.85 and 99,542.62 is: 149,323.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,258.48 : 528,419.85 = 99,542.62 : x
  2. Step 2: Convert to fraction form
    352,258.48/528,419.85 = 99,542.62/x
  3. Step 3: Cross multiply
    352,258.48x = 528,419.85 × 99,542.62
  4. Step 4: Simplify right side
    352,258.48x = 52,600,296,329.01
  5. Step 5: Solve for x
    x = 52,600,296,329.01/352,258.48
  6. Step 6: Final answer
    x = 149,323.01

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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.