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Finding the Fourth Proportional to 76,607.90, 114,964.70 and 26,688.41

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Solution

The fourth proportional to 76,607.90, 114,964.70 and 26,688.41 is: 40,051.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,607.90 : 114,964.70 = 26,688.41 : x
  2. Step 2: Convert to fraction form
    76,607.90/114,964.70 = 26,688.41/x
  3. Step 3: Cross multiply
    76,607.90x = 114,964.70 × 26,688.41
  4. Step 4: Simplify right side
    76,607.90x = 3,068,224,340.86
  5. Step 5: Solve for x
    x = 3,068,224,340.86/76,607.90
  6. Step 6: Final answer
    x = 40,051.02

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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.