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Finding the Fourth Proportional to 124,212.66, 186,197.49 and 49,307.91

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Solution

The fourth proportional to 124,212.66, 186,197.49 and 49,307.91 is: 73,913.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,212.66 : 186,197.49 = 49,307.91 : x
  2. Step 2: Convert to fraction form
    124,212.66/186,197.49 = 49,307.91/x
  3. Step 3: Cross multiply
    124,212.66x = 186,197.49 × 49,307.91
  4. Step 4: Simplify right side
    124,212.66x = 9,181,009,079.15
  5. Step 5: Solve for x
    x = 9,181,009,079.15/124,212.66
  6. Step 6: Final answer
    x = 73,913.63

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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.