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Finding the Fourth Proportional to 124,135.88, 186,123.69 and 53,104.86

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Solution

The fourth proportional to 124,135.88, 186,123.69 and 53,104.86 is: 79,623.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,135.88 : 186,123.69 = 53,104.86 : x
  2. Step 2: Convert to fraction form
    124,135.88/186,123.69 = 53,104.86/x
  3. Step 3: Cross multiply
    124,135.88x = 186,123.69 × 53,104.86
  4. Step 4: Simplify right side
    124,135.88x = 9,884,071,528.05
  5. Step 5: Solve for x
    x = 9,884,071,528.05/124,135.88
  6. Step 6: Final answer
    x = 79,623.00

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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.