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Finding the Fourth Proportional to 91,289.53, 125,957.96 and 53,026.34

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Solution

The fourth proportional to 91,289.53, 125,957.96 and 53,026.34 is: 73,163.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,289.53 : 125,957.96 = 53,026.34 : x
  2. Step 2: Convert to fraction form
    91,289.53/125,957.96 = 53,026.34/x
  3. Step 3: Cross multiply
    91,289.53x = 125,957.96 × 53,026.34
  4. Step 4: Simplify right side
    91,289.53x = 6,679,089,612.67
  5. Step 5: Solve for x
    x = 6,679,089,612.67/91,289.53
  6. Step 6: Final answer
    x = 73,163.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.