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Finding the Fourth Proportional to 303,965.61, 455,957.63 and 104,283.11

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Solution

The fourth proportional to 303,965.61, 455,957.63 and 104,283.11 is: 156,427.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,965.61 : 455,957.63 = 104,283.11 : x
  2. Step 2: Convert to fraction form
    303,965.61/455,957.63 = 104,283.11/x
  3. Step 3: Cross multiply
    303,965.61x = 455,957.63 × 104,283.11
  4. Step 4: Simplify right side
    303,965.61x = 47,548,676,883.43
  5. Step 5: Solve for x
    x = 47,548,676,883.43/303,965.61
  6. Step 6: Final answer
    x = 156,427.82

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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.