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Finding the Fourth Proportional to 389,058.60, 583,263.90 and 164,591.40

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Solution

The fourth proportional to 389,058.60, 583,263.90 and 164,591.40 is: 246,750.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,058.60 : 583,263.90 = 164,591.40 : x
  2. Step 2: Convert to fraction form
    389,058.60/583,263.90 = 164,591.40/x
  3. Step 3: Cross multiply
    389,058.60x = 583,263.90 × 164,591.40
  4. Step 4: Simplify right side
    389,058.60x = 96,000,221,870.46
  5. Step 5: Solve for x
    x = 96,000,221,870.46/389,058.60
  6. Step 6: Final answer
    x = 246,750.03

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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.