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Finding the Fourth Proportional to 450,908.84, 676,203.71 and 130,994.15

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Solution

The fourth proportional to 450,908.84, 676,203.71 and 130,994.15 is: 196,444.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,908.84 : 676,203.71 = 130,994.15 : x
  2. Step 2: Convert to fraction form
    450,908.84/676,203.71 = 130,994.15/x
  3. Step 3: Cross multiply
    450,908.84x = 676,203.71 × 130,994.15
  4. Step 4: Simplify right side
    450,908.84x = 88,578,727,164.76
  5. Step 5: Solve for x
    x = 88,578,727,164.76/450,908.84
  6. Step 6: Final answer
    x = 196,444.87

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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.