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Finding the Fourth Proportional to 124,722.90, 187,047.90 and 44,751.60

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Solution

The fourth proportional to 124,722.90, 187,047.90 and 44,751.60 is: 67,114.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,722.90 : 187,047.90 = 44,751.60 : x
  2. Step 2: Convert to fraction form
    124,722.90/187,047.90 = 44,751.60/x
  3. Step 3: Cross multiply
    124,722.90x = 187,047.90 × 44,751.60
  4. Step 4: Simplify right side
    124,722.90x = 8,370,692,801.64
  5. Step 5: Solve for x
    x = 8,370,692,801.64/124,722.90
  6. Step 6: Final answer
    x = 67,114.32

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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.