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Finding the Fourth Proportional to 103,486.70, 155,200.01 and 40,292.70

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Solution

The fourth proportional to 103,486.70, 155,200.01 and 40,292.70 is: 60,427.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,486.70 : 155,200.01 = 40,292.70 : x
  2. Step 2: Convert to fraction form
    103,486.70/155,200.01 = 40,292.70/x
  3. Step 3: Cross multiply
    103,486.70x = 155,200.01 × 40,292.70
  4. Step 4: Simplify right side
    103,486.70x = 6,253,427,241.46
  5. Step 5: Solve for x
    x = 6,253,427,241.46/103,486.70
  6. Step 6: Final answer
    x = 60,427.35

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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.