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Finding the Fourth Proportional to 249,536.97, 374,250.42 and 72,005.40

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Solution

The fourth proportional to 249,536.97, 374,250.42 and 72,005.40 is: 107,992.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,536.97 : 374,250.42 = 72,005.40 : x
  2. Step 2: Convert to fraction form
    249,536.97/374,250.42 = 72,005.40/x
  3. Step 3: Cross multiply
    249,536.97x = 374,250.42 × 72,005.40
  4. Step 4: Simplify right side
    249,536.97x = 26,948,051,192.27
  5. Step 5: Solve for x
    x = 26,948,051,192.27/249,536.97
  6. Step 6: Final answer
    x = 107,992.22

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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.