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Finding the Fourth Proportional to 441,987.68, 662,981.04 and 109,563.68

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Solution

The fourth proportional to 441,987.68, 662,981.04 and 109,563.68 is: 164,345.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,987.68 : 662,981.04 = 109,563.68 : x
  2. Step 2: Convert to fraction form
    441,987.68/662,981.04 = 109,563.68/x
  3. Step 3: Cross multiply
    441,987.68x = 662,981.04 × 109,563.68
  4. Step 4: Simplify right side
    441,987.68x = 72,638,642,512.63
  5. Step 5: Solve for x
    x = 72,638,642,512.63/441,987.68
  6. Step 6: Final answer
    x = 164,345.40

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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.