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Finding the Fourth Proportional to 389,084.60, 583,302.90 and 164,617.40

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Solution

The fourth proportional to 389,084.60, 583,302.90 and 164,617.40 is: 246,789.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,084.60 : 583,302.90 = 164,617.40 : x
  2. Step 2: Convert to fraction form
    389,084.60/583,302.90 = 164,617.40/x
  3. Step 3: Cross multiply
    389,084.60x = 583,302.90 × 164,617.40
  4. Step 4: Simplify right side
    389,084.60x = 96,021,806,810.46
  5. Step 5: Solve for x
    x = 96,021,806,810.46/389,084.60
  6. Step 6: Final answer
    x = 246,789.02

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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.