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Finding the Fourth Proportional to 389,017.36, 583,751.58 and 164,363.26

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Solution

The fourth proportional to 389,017.36, 583,751.58 and 164,363.26 is: 246,640.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,017.36 : 583,751.58 = 164,363.26 : x
  2. Step 2: Convert to fraction form
    389,017.36/583,751.58 = 164,363.26/x
  3. Step 3: Cross multiply
    389,017.36x = 583,751.58 × 164,363.26
  4. Step 4: Simplify right side
    389,017.36x = 95,947,312,718.95
  5. Step 5: Solve for x
    x = 95,947,312,718.95/389,017.36
  6. Step 6: Final answer
    x = 246,640.18

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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.