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Finding the Fourth Proportional to 103,564.70, 155,347.05 and 29,692.70

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Solution

The fourth proportional to 103,564.70, 155,347.05 and 29,692.70 is: 44,539.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,564.70 : 155,347.05 = 29,692.70 : x
  2. Step 2: Convert to fraction form
    103,564.70/155,347.05 = 29,692.70/x
  3. Step 3: Cross multiply
    103,564.70x = 155,347.05 × 29,692.70
  4. Step 4: Simplify right side
    103,564.70x = 4,612,673,351.54
  5. Step 5: Solve for x
    x = 4,612,673,351.54/103,564.70
  6. Step 6: Final answer
    x = 44,539.05

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1.5x scale

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.