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Finding the Fourth Proportional to 124,389.62, 186,583.50 and 35,643.20

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Solution

The fourth proportional to 124,389.62, 186,583.50 and 35,643.20 is: 53,464.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,389.62 : 186,583.50 = 35,643.20 : x
  2. Step 2: Convert to fraction form
    124,389.62/186,583.50 = 35,643.20/x
  3. Step 3: Cross multiply
    124,389.62x = 186,583.50 × 35,643.20
  4. Step 4: Simplify right side
    124,389.62x = 6,650,433,007.20
  5. Step 5: Solve for x
    x = 6,650,433,007.20/124,389.62
  6. Step 6: Final answer
    x = 53,464.53

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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.