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Finding the Fourth Proportional to 352,122, 528,050.30 and 127,426.86

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Solution

The fourth proportional to 352,122, 528,050.30 and 127,426.86 is: 191,092.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,122 : 528,050.30 = 127,426.86 : x
  2. Step 2: Convert to fraction form
    352,122/528,050.30 = 127,426.86/x
  3. Step 3: Cross multiply
    352,122x = 528,050.30 × 127,426.86
  4. Step 4: Simplify right side
    352,122x = 67,287,791,651.06
  5. Step 5: Solve for x
    x = 67,287,791,651.06/352,122
  6. Step 6: Final answer
    x = 191,092.27

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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.