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Finding the Fourth Proportional to 311,191.32, 466,848.18 and 111,457.92

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Solution

The fourth proportional to 311,191.32, 466,848.18 and 111,457.92 is: 167,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,191.32 : 466,848.18 = 111,457.92 : x
  2. Step 2: Convert to fraction form
    311,191.32/466,848.18 = 111,457.92/x
  3. Step 3: Cross multiply
    311,191.32x = 466,848.18 × 111,457.92
  4. Step 4: Simplify right side
    311,191.32x = 52,033,927,098.59
  5. Step 5: Solve for x
    x = 52,033,927,098.59/311,191.32
  6. Step 6: Final answer
    x = 167,208.80

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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.