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Finding the Fourth Proportional to 132,718.50, 183,151.53 and 73,102.50

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Solution

The fourth proportional to 132,718.50, 183,151.53 and 73,102.50 is: 100,881.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,718.50 : 183,151.53 = 73,102.50 : x
  2. Step 2: Convert to fraction form
    132,718.50/183,151.53 = 73,102.50/x
  3. Step 3: Cross multiply
    132,718.50x = 183,151.53 × 73,102.50
  4. Step 4: Simplify right side
    132,718.50x = 13,388,834,721.83
  5. Step 5: Solve for x
    x = 13,388,834,721.83/132,718.50
  6. Step 6: Final answer
    x = 100,881.45

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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.