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Finding the Fourth Proportional to 583,806.80, 875,645.40 and 163,125.20

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Solution

The fourth proportional to 583,806.80, 875,645.40 and 163,125.20 is: 244,669.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,806.80 : 875,645.40 = 163,125.20 : x
  2. Step 2: Convert to fraction form
    583,806.80/875,645.40 = 163,125.20/x
  3. Step 3: Cross multiply
    583,806.80x = 875,645.40 × 163,125.20
  4. Step 4: Simplify right side
    583,806.80x = 142,839,831,004.08
  5. Step 5: Solve for x
    x = 142,839,831,004.08/583,806.80
  6. Step 6: Final answer
    x = 244,669.69

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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.