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Finding the Fourth Proportional to 194,965.70, 292,448.55 and 70,306.70

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Solution

The fourth proportional to 194,965.70, 292,448.55 and 70,306.70 is: 105,460.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,965.70 : 292,448.55 = 70,306.70 : x
  2. Step 2: Convert to fraction form
    194,965.70/292,448.55 = 70,306.70/x
  3. Step 3: Cross multiply
    194,965.70x = 292,448.55 × 70,306.70
  4. Step 4: Simplify right side
    194,965.70x = 20,561,091,008.04
  5. Step 5: Solve for x
    x = 20,561,091,008.04/194,965.70
  6. Step 6: Final answer
    x = 105,460.05

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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.