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Finding the Fourth Proportional to 140,978.76, 211,500.54 and 62,099.07

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Solution

The fourth proportional to 140,978.76, 211,500.54 and 62,099.07 is: 93,162.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,978.76 : 211,500.54 = 62,099.07 : x
  2. Step 2: Convert to fraction form
    140,978.76/211,500.54 = 62,099.07/x
  3. Step 3: Cross multiply
    140,978.76x = 211,500.54 × 62,099.07
  4. Step 4: Simplify right side
    140,978.76x = 13,133,986,838.50
  5. Step 5: Solve for x
    x = 13,133,986,838.50/140,978.76
  6. Step 6: Final answer
    x = 93,162.88

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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.