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Finding the Fourth Proportional to 194,395.40, 291,549.34 and 69,736.40

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Solution

The fourth proportional to 194,395.40, 291,549.34 and 69,736.40 is: 104,588.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,395.40 : 291,549.34 = 69,736.40 : x
  2. Step 2: Convert to fraction form
    194,395.40/291,549.34 = 69,736.40/x
  3. Step 3: Cross multiply
    194,395.40x = 291,549.34 × 69,736.40
  4. Step 4: Simplify right side
    194,395.40x = 20,331,601,393.98
  5. Step 5: Solve for x
    x = 20,331,601,393.98/194,395.40
  6. Step 6: Final answer
    x = 104,588.90

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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.