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Finding the Fourth Proportional to 210,633.14, 316,005.06 and 75,710.90

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Solution

The fourth proportional to 210,633.14, 316,005.06 and 75,710.90 is: 113,586.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,633.14 : 316,005.06 = 75,710.90 : x
  2. Step 2: Convert to fraction form
    210,633.14/316,005.06 = 75,710.90/x
  3. Step 3: Cross multiply
    210,633.14x = 316,005.06 × 75,710.90
  4. Step 4: Simplify right side
    210,633.14x = 23,925,027,497.15
  5. Step 5: Solve for x
    x = 23,925,027,497.15/210,633.14
  6. Step 6: Final answer
    x = 113,586.25

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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.