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Finding the Fourth Proportional to 127,875.53, 191,879.18 and 56,847.17

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Solution

The fourth proportional to 127,875.53, 191,879.18 and 56,847.17 is: 85,300.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,875.53 : 191,879.18 = 56,847.17 : x
  2. Step 2: Convert to fraction form
    127,875.53/191,879.18 = 56,847.17/x
  3. Step 3: Cross multiply
    127,875.53x = 191,879.18 × 56,847.17
  4. Step 4: Simplify right side
    127,875.53x = 10,907,788,364.92
  5. Step 5: Solve for x
    x = 10,907,788,364.92/127,875.53
  6. Step 6: Final answer
    x = 85,300.04

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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.