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Finding the Fourth Proportional to 565,005.01, 847,640.78 and 185,955.54

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Solution

The fourth proportional to 565,005.01, 847,640.78 and 185,955.54 is: 278,977.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,005.01 : 847,640.78 = 185,955.54 : x
  2. Step 2: Convert to fraction form
    565,005.01/847,640.78 = 185,955.54/x
  3. Step 3: Cross multiply
    565,005.01x = 847,640.78 × 185,955.54
  4. Step 4: Simplify right side
    565,005.01x = 157,623,498,970.92
  5. Step 5: Solve for x
    x = 157,623,498,970.92/565,005.01
  6. Step 6: Final answer
    x = 278,977.17

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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.