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Finding the Fourth Proportional to 442,355.88, 663,533.82 and 109,931.88

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Solution

The fourth proportional to 442,355.88, 663,533.82 and 109,931.88 is: 164,897.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,355.88 : 663,533.82 = 109,931.88 : x
  2. Step 2: Convert to fraction form
    442,355.88/663,533.82 = 109,931.88/x
  3. Step 3: Cross multiply
    442,355.88x = 663,533.82 × 109,931.88
  4. Step 4: Simplify right side
    442,355.88x = 72,943,520,276.18
  5. Step 5: Solve for x
    x = 72,943,520,276.18/442,355.88
  6. Step 6: Final answer
    x = 164,897.82

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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.