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Finding the Fourth Proportional to 352,357.80, 528,554.52 and 99,656.52

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Solution

The fourth proportional to 352,357.80, 528,554.52 and 99,656.52 is: 149,489.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,357.80 : 528,554.52 = 99,656.52 : x
  2. Step 2: Convert to fraction form
    352,357.80/528,554.52 = 99,656.52/x
  3. Step 3: Cross multiply
    352,357.80x = 528,554.52 × 99,656.52
  4. Step 4: Simplify right side
    352,357.80x = 52,673,904,093.47
  5. Step 5: Solve for x
    x = 52,673,904,093.47/352,357.80
  6. Step 6: Final answer
    x = 149,489.82

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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.