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Finding the Fourth Proportional to 103,503.15, 155,200.05 and 44,271.90

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Solution

The fourth proportional to 103,503.15, 155,200.05 and 44,271.90 is: 66,384.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,503.15 : 155,200.05 = 44,271.90 : x
  2. Step 2: Convert to fraction form
    103,503.15/155,200.05 = 44,271.90/x
  3. Step 3: Cross multiply
    103,503.15x = 155,200.05 × 44,271.90
  4. Step 4: Simplify right side
    103,503.15x = 6,871,001,093.60
  5. Step 5: Solve for x
    x = 6,871,001,093.60/103,503.15
  6. Step 6: Final answer
    x = 66,384.46

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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.