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Finding the Fourth Proportional to 148,307.61, 204,663.47 and 80,323.02

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Solution

The fourth proportional to 148,307.61, 204,663.47 and 80,323.02 is: 110,845.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,307.61 : 204,663.47 = 80,323.02 : x
  2. Step 2: Convert to fraction form
    148,307.61/204,663.47 = 80,323.02/x
  3. Step 3: Cross multiply
    148,307.61x = 204,663.47 × 80,323.02
  4. Step 4: Simplify right side
    148,307.61x = 16,439,188,706.55
  5. Step 5: Solve for x
    x = 16,439,188,706.55/148,307.61
  6. Step 6: Final answer
    x = 110,845.22

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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.