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Finding the Fourth Proportional to 83,133.65, 124,750.15 and 30,548.45

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Solution

The fourth proportional to 83,133.65, 124,750.15 and 30,548.45 is: 45,840.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,133.65 : 124,750.15 = 30,548.45 : x
  2. Step 2: Convert to fraction form
    83,133.65/124,750.15 = 30,548.45/x
  3. Step 3: Cross multiply
    83,133.65x = 124,750.15 × 30,548.45
  4. Step 4: Simplify right side
    83,133.65x = 3,810,923,719.77
  5. Step 5: Solve for x
    x = 3,810,923,719.77/83,133.65
  6. Step 6: Final answer
    x = 45,840.93

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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.