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Finding the Fourth Proportional to 103,432.30, 155,148.45 and 50,944.30

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Solution

The fourth proportional to 103,432.30, 155,148.45 and 50,944.30 is: 76,416.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,432.30 : 155,148.45 = 50,944.30 : x
  2. Step 2: Convert to fraction form
    103,432.30/155,148.45 = 50,944.30/x
  3. Step 3: Cross multiply
    103,432.30x = 155,148.45 × 50,944.30
  4. Step 4: Simplify right side
    103,432.30x = 7,903,929,181.34
  5. Step 5: Solve for x
    x = 7,903,929,181.34/103,432.30
  6. Step 6: Final answer
    x = 76,416.45

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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.