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Finding the Fourth Proportional to 441,985.68, 662,978.04 and 109,561.68

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Solution

The fourth proportional to 441,985.68, 662,978.04 and 109,561.68 is: 164,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,985.68 : 662,978.04 = 109,561.68 : x
  2. Step 2: Convert to fraction form
    441,985.68/662,978.04 = 109,561.68/x
  3. Step 3: Cross multiply
    441,985.68x = 662,978.04 × 109,561.68
  4. Step 4: Simplify right side
    441,985.68x = 72,636,987,865.51
  5. Step 5: Solve for x
    x = 72,636,987,865.51/441,985.68
  6. Step 6: Final answer
    x = 164,342.40

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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.