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Finding the Fourth Proportional to 220,441.64, 330,491.14 and 70,595.69

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Solution

The fourth proportional to 220,441.64, 330,491.14 and 70,595.69 is: 105,838.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,441.64 : 330,491.14 = 70,595.69 : x
  2. Step 2: Convert to fraction form
    220,441.64/330,491.14 = 70,595.69/x
  3. Step 3: Cross multiply
    220,441.64x = 330,491.14 × 70,595.69
  4. Step 4: Simplify right side
    220,441.64x = 23,331,248,238.24
  5. Step 5: Solve for x
    x = 23,331,248,238.24/220,441.64
  6. Step 6: Final answer
    x = 105,838.66

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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.