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Finding the Fourth Proportional to 194,064.80, 291,005.03 and 67,689.71

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Solution

The fourth proportional to 194,064.80, 291,005.03 and 67,689.71 is: 101,502.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,064.80 : 291,005.03 = 67,689.71 : x
  2. Step 2: Convert to fraction form
    194,064.80/291,005.03 = 67,689.71/x
  3. Step 3: Cross multiply
    194,064.80x = 291,005.03 × 67,689.71
  4. Step 4: Simplify right side
    194,064.80x = 19,698,044,803.44
  5. Step 5: Solve for x
    x = 19,698,044,803.44/194,064.80
  6. Step 6: Final answer
    x = 101,502.41

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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.