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Finding the Fourth Proportional to 124,020.50, 186,030.75 and 36,468.50

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Solution

The fourth proportional to 124,020.50, 186,030.75 and 36,468.50 is: 54,702.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,020.50 : 186,030.75 = 36,468.50 : x
  2. Step 2: Convert to fraction form
    124,020.50/186,030.75 = 36,468.50/x
  3. Step 3: Cross multiply
    124,020.50x = 186,030.75 × 36,468.50
  4. Step 4: Simplify right side
    124,020.50x = 6,784,262,406.38
  5. Step 5: Solve for x
    x = 6,784,262,406.38/124,020.50
  6. Step 6: Final answer
    x = 54,702.75

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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.