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Finding the Fourth Proportional to 124,662.95, 186,994.43 and 31,168.70

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Solution

The fourth proportional to 124,662.95, 186,994.43 and 31,168.70 is: 46,753.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,662.95 : 186,994.43 = 31,168.70 : x
  2. Step 2: Convert to fraction form
    124,662.95/186,994.43 = 31,168.70/x
  3. Step 3: Cross multiply
    124,662.95x = 186,994.43 × 31,168.70
  4. Step 4: Simplify right side
    124,662.95x = 5,828,373,290.34
  5. Step 5: Solve for x
    x = 5,828,373,290.34/124,662.95
  6. Step 6: Final answer
    x = 46,753.05

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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.