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Finding the Fourth Proportional to 251,762.50, 377,513.88 and 74,246.50

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Solution

The fourth proportional to 251,762.50, 377,513.88 and 74,246.50 is: 111,331.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,762.50 : 377,513.88 = 74,246.50 : x
  2. Step 2: Convert to fraction form
    251,762.50/377,513.88 = 74,246.50/x
  3. Step 3: Cross multiply
    251,762.50x = 377,513.88 × 74,246.50
  4. Step 4: Simplify right side
    251,762.50x = 28,029,084,291.42
  5. Step 5: Solve for x
    x = 28,029,084,291.42/251,762.50
  6. Step 6: Final answer
    x = 111,331.45

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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.