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Finding the Fourth Proportional to 124,117.56, 186,176.40 and 30,623.40

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Solution

The fourth proportional to 124,117.56, 186,176.40 and 30,623.40 is: 45,935.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,117.56 : 186,176.40 = 30,623.40 : x
  2. Step 2: Convert to fraction form
    124,117.56/186,176.40 = 30,623.40/x
  3. Step 3: Cross multiply
    124,117.56x = 186,176.40 × 30,623.40
  4. Step 4: Simplify right side
    124,117.56x = 5,701,354,367.76
  5. Step 5: Solve for x
    x = 5,701,354,367.76/124,117.56
  6. Step 6: Final answer
    x = 45,935.11

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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.