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Finding the Fourth Proportional to 389,363.58, 584,041.68 and 123,124.14

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Solution

The fourth proportional to 389,363.58, 584,041.68 and 123,124.14 is: 184,685.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,363.58 : 584,041.68 = 123,124.14 : x
  2. Step 2: Convert to fraction form
    389,363.58/584,041.68 = 123,124.14/x
  3. Step 3: Cross multiply
    389,363.58x = 584,041.68 × 123,124.14
  4. Step 4: Simplify right side
    389,363.58x = 71,909,629,574.16
  5. Step 5: Solve for x
    x = 71,909,629,574.16/389,363.58
  6. Step 6: Final answer
    x = 184,685.04

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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.