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Finding the Fourth Proportional to 124,419.80, 186,629.70 and 73,900.10

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Solution

The fourth proportional to 124,419.80, 186,629.70 and 73,900.10 is: 110,850.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,419.80 : 186,629.70 = 73,900.10 : x
  2. Step 2: Convert to fraction form
    124,419.80/186,629.70 = 73,900.10/x
  3. Step 3: Cross multiply
    124,419.80x = 186,629.70 × 73,900.10
  4. Step 4: Simplify right side
    124,419.80x = 13,791,953,492.97
  5. Step 5: Solve for x
    x = 13,791,953,492.97/124,419.80
  6. Step 6: Final answer
    x = 110,850.15

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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.