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Finding the Fourth Proportional to 303,208.60, 455,031.60 and 169,947.40

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Solution

The fourth proportional to 303,208.60, 455,031.60 and 169,947.40 is: 255,043.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,208.60 : 455,031.60 = 169,947.40 : x
  2. Step 2: Convert to fraction form
    303,208.60/455,031.60 = 169,947.40/x
  3. Step 3: Cross multiply
    303,208.60x = 455,031.60 × 169,947.40
  4. Step 4: Simplify right side
    303,208.60x = 77,331,437,337.84
  5. Step 5: Solve for x
    x = 77,331,437,337.84/303,208.60
  6. Step 6: Final answer
    x = 255,043.68

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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.