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Finding the Fourth Proportional to 133,010.61, 183,558.71 and 75,658.20

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Solution

The fourth proportional to 133,010.61, 183,558.71 and 75,658.20 is: 104,410.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,010.61 : 183,558.71 = 75,658.20 : x
  2. Step 2: Convert to fraction form
    133,010.61/183,558.71 = 75,658.20/x
  3. Step 3: Cross multiply
    133,010.61x = 183,558.71 × 75,658.20
  4. Step 4: Simplify right side
    133,010.61x = 13,887,721,592.92
  5. Step 5: Solve for x
    x = 13,887,721,592.92/133,010.61
  6. Step 6: Final answer
    x = 104,410.63

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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.