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Finding the Fourth Proportional to 267,313.40, 400,970.10 and 89,761.40

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Solution

The fourth proportional to 267,313.40, 400,970.10 and 89,761.40 is: 134,642.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,313.40 : 400,970.10 = 89,761.40 : x
  2. Step 2: Convert to fraction form
    267,313.40/400,970.10 = 89,761.40/x
  3. Step 3: Cross multiply
    267,313.40x = 400,970.10 × 89,761.40
  4. Step 4: Simplify right side
    267,313.40x = 35,991,637,534.14
  5. Step 5: Solve for x
    x = 35,991,637,534.14/267,313.40
  6. Step 6: Final answer
    x = 134,642.10

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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.