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Finding the Fourth Proportional to 124,635.40, 186,953.10 and 109,083.40

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Solution

The fourth proportional to 124,635.40, 186,953.10 and 109,083.40 is: 163,625.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,635.40 : 186,953.10 = 109,083.40 : x
  2. Step 2: Convert to fraction form
    124,635.40/186,953.10 = 109,083.40/x
  3. Step 3: Cross multiply
    124,635.40x = 186,953.10 × 109,083.40
  4. Step 4: Simplify right side
    124,635.40x = 20,393,479,788.54
  5. Step 5: Solve for x
    x = 20,393,479,788.54/124,635.40
  6. Step 6: Final answer
    x = 163,625.10

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1.5x scale

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.