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Finding the Fourth Proportional to 191,323.19, 264,028.43 and 105,292.08

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Solution

The fourth proportional to 191,323.19, 264,028.43 and 105,292.08 is: 145,304.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,323.19 : 264,028.43 = 105,292.08 : x
  2. Step 2: Convert to fraction form
    191,323.19/264,028.43 = 105,292.08/x
  3. Step 3: Cross multiply
    191,323.19x = 264,028.43 × 105,292.08
  4. Step 4: Simplify right side
    191,323.19x = 27,800,102,837.06
  5. Step 5: Solve for x
    x = 27,800,102,837.06/191,323.19
  6. Step 6: Final answer
    x = 145,304.41

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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.