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Finding the Fourth Proportional to 352,113.39, 528,160.84 and 99,411.35

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Solution

The fourth proportional to 352,113.39, 528,160.84 and 99,411.35 is: 149,114.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,113.39 : 528,160.84 = 99,411.35 : x
  2. Step 2: Convert to fraction form
    352,113.39/528,160.84 = 99,411.35/x
  3. Step 3: Cross multiply
    352,113.39x = 528,160.84 × 99,411.35
  4. Step 4: Simplify right side
    352,113.39x = 52,505,182,121.53
  5. Step 5: Solve for x
    x = 52,505,182,121.53/352,113.39
  6. Step 6: Final answer
    x = 149,114.41

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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.