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Finding the Fourth Proportional to 124,946, 187,419.18 and 51,074

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Solution

The fourth proportional to 124,946, 187,419.18 and 51,074 is: 76,611.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,946 : 187,419.18 = 51,074 : x
  2. Step 2: Convert to fraction form
    124,946/187,419.18 = 51,074/x
  3. Step 3: Cross multiply
    124,946x = 187,419.18 × 51,074
  4. Step 4: Simplify right side
    124,946x = 9,572,247,199.32
  5. Step 5: Solve for x
    x = 9,572,247,199.32/124,946
  6. Step 6: Final answer
    x = 76,611.07

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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.