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Finding the Fourth Proportional to 611,745.30, 917,747.55 and 185,246.10

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Solution

The fourth proportional to 611,745.30, 917,747.55 and 185,246.10 is: 277,908.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,745.30 : 917,747.55 = 185,246.10 : x
  2. Step 2: Convert to fraction form
    611,745.30/917,747.55 = 185,246.10/x
  3. Step 3: Cross multiply
    611,745.30x = 917,747.55 × 185,246.10
  4. Step 4: Simplify right side
    611,745.30x = 170,009,154,422.06
  5. Step 5: Solve for x
    x = 170,009,154,422.06/611,745.30
  6. Step 6: Final answer
    x = 277,908.39

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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.