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Finding the Fourth Proportional to 193,989.78, 291,140.19 and 100,522.26

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Solution

The fourth proportional to 193,989.78, 291,140.19 and 100,522.26 is: 150,863.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,989.78 : 291,140.19 = 100,522.26 : x
  2. Step 2: Convert to fraction form
    193,989.78/291,140.19 = 100,522.26/x
  3. Step 3: Cross multiply
    193,989.78x = 291,140.19 × 100,522.26
  4. Step 4: Simplify right side
    193,989.78x = 29,266,069,875.63
  5. Step 5: Solve for x
    x = 29,266,069,875.63/193,989.78
  6. Step 6: Final answer
    x = 150,863.98

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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.