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Finding the Fourth Proportional to 194,498.70, 291,748.05 and 115,572.30

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Solution

The fourth proportional to 194,498.70, 291,748.05 and 115,572.30 is: 173,358.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,498.70 : 291,748.05 = 115,572.30 : x
  2. Step 2: Convert to fraction form
    194,498.70/291,748.05 = 115,572.30/x
  3. Step 3: Cross multiply
    194,498.70x = 291,748.05 × 115,572.30
  4. Step 4: Simplify right side
    194,498.70x = 33,717,993,159.02
  5. Step 5: Solve for x
    x = 33,717,993,159.02/194,498.70
  6. Step 6: Final answer
    x = 173,358.45

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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.