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Finding the Fourth Proportional to 354,940.84, 532,264.38 and 144,435.88

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Solution

The fourth proportional to 354,940.84, 532,264.38 and 144,435.88 is: 216,594.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,940.84 : 532,264.38 = 144,435.88 : x
  2. Step 2: Convert to fraction form
    354,940.84/532,264.38 = 144,435.88/x
  3. Step 3: Cross multiply
    354,940.84x = 532,264.38 × 144,435.88
  4. Step 4: Simplify right side
    354,940.84x = 76,878,074,117.95
  5. Step 5: Solve for x
    x = 76,878,074,117.95/354,940.84
  6. Step 6: Final answer
    x = 216,594.05

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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.