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Finding the Fourth Proportional to 374,677.80, 562,016.70 and 121,982.10

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Solution

The fourth proportional to 374,677.80, 562,016.70 and 121,982.10 is: 182,973.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,677.80 : 562,016.70 = 121,982.10 : x
  2. Step 2: Convert to fraction form
    374,677.80/562,016.70 = 121,982.10/x
  3. Step 3: Cross multiply
    374,677.80x = 562,016.70 × 121,982.10
  4. Step 4: Simplify right side
    374,677.80x = 68,555,977,301.07
  5. Step 5: Solve for x
    x = 68,555,977,301.07/374,677.80
  6. Step 6: Final answer
    x = 182,973.15

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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.