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Finding the Fourth Proportional to 267,373.40, 401,060.10 and 89,821.40

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Solution

The fourth proportional to 267,373.40, 401,060.10 and 89,821.40 is: 134,732.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,373.40 : 401,060.10 = 89,821.40 : x
  2. Step 2: Convert to fraction form
    267,373.40/401,060.10 = 89,821.40/x
  3. Step 3: Cross multiply
    267,373.40x = 401,060.10 × 89,821.40
  4. Step 4: Simplify right side
    267,373.40x = 36,023,779,666.14
  5. Step 5: Solve for x
    x = 36,023,779,666.14/267,373.40
  6. Step 6: Final answer
    x = 134,732.10

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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.