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Finding the Fourth Proportional to 210,065.85, 289,923.18 and 124,033.98

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Solution

The fourth proportional to 210,065.85, 289,923.18 and 124,033.98 is: 171,185.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,065.85 : 289,923.18 = 124,033.98 : x
  2. Step 2: Convert to fraction form
    210,065.85/289,923.18 = 124,033.98/x
  3. Step 3: Cross multiply
    210,065.85x = 289,923.18 × 124,033.98
  4. Step 4: Simplify right side
    210,065.85x = 35,960,325,909.66
  5. Step 5: Solve for x
    x = 35,960,325,909.66/210,065.85
  6. Step 6: Final answer
    x = 171,185.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.