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Finding the Fourth Proportional to 191,894.40, 264,825.60 and 107,009.28

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Solution

The fourth proportional to 191,894.40, 264,825.60 and 107,009.28 is: 147,679.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,894.40 : 264,825.60 = 107,009.28 : x
  2. Step 2: Convert to fraction form
    191,894.40/264,825.60 = 107,009.28/x
  3. Step 3: Cross multiply
    191,894.40x = 264,825.60 × 107,009.28
  4. Step 4: Simplify right side
    191,894.40x = 28,338,796,781.57
  5. Step 5: Solve for x
    x = 28,338,796,781.57/191,894.40
  6. Step 6: Final answer
    x = 147,679.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.