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Finding the Fourth Proportional to 267,453.76, 401,207.28 and 99,019.12

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Solution

The fourth proportional to 267,453.76, 401,207.28 and 99,019.12 is: 148,538.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,453.76 : 401,207.28 = 99,019.12 : x
  2. Step 2: Convert to fraction form
    267,453.76/401,207.28 = 99,019.12/x
  3. Step 3: Cross multiply
    267,453.76x = 401,207.28 × 99,019.12
  4. Step 4: Simplify right side
    267,453.76x = 39,727,191,803.19
  5. Step 5: Solve for x
    x = 39,727,191,803.19/267,453.76
  6. Step 6: Final answer
    x = 148,538.54

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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.