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Finding the Fourth Proportional to 183,345.78, 275,097.70 and 99,165.21

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Solution

The fourth proportional to 183,345.78, 275,097.70 and 99,165.21 is: 148,790.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,345.78 : 275,097.70 = 99,165.21 : x
  2. Step 2: Convert to fraction form
    183,345.78/275,097.70 = 99,165.21/x
  3. Step 3: Cross multiply
    183,345.78x = 275,097.70 × 99,165.21
  4. Step 4: Simplify right side
    183,345.78x = 27,280,119,911.49
  5. Step 5: Solve for x
    x = 27,280,119,911.49/183,345.78
  6. Step 6: Final answer
    x = 148,790.55

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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.