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Finding the Fourth Proportional to 249,465.88, 374,193.51 and 80,985.96

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Solution

The fourth proportional to 249,465.88, 374,193.51 and 80,985.96 is: 121,477.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,465.88 : 374,193.51 = 80,985.96 : x
  2. Step 2: Convert to fraction form
    249,465.88/374,193.51 = 80,985.96/x
  3. Step 3: Cross multiply
    249,465.88x = 374,193.51 × 80,985.96
  4. Step 4: Simplify right side
    249,465.88x = 30,304,420,633.12
  5. Step 5: Solve for x
    x = 30,304,420,633.12/249,465.88
  6. Step 6: Final answer
    x = 121,477.22

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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.