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Finding the Fourth Proportional to 267,544.95, 401,358.89 and 90,038.13

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Solution

The fourth proportional to 267,544.95, 401,358.89 and 90,038.13 is: 135,071.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,544.95 : 401,358.89 = 90,038.13 : x
  2. Step 2: Convert to fraction form
    267,544.95/401,358.89 = 90,038.13/x
  3. Step 3: Cross multiply
    267,544.95x = 401,358.89 × 90,038.13
  4. Step 4: Simplify right side
    267,544.95x = 36,137,603,914.48
  5. Step 5: Solve for x
    x = 36,137,603,914.48/267,544.95
  6. Step 6: Final answer
    x = 135,071.15

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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.