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Finding the Fourth Proportional to 249,557.16, 374,224.56 and 72,022

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Solution

The fourth proportional to 249,557.16, 374,224.56 and 72,022 is: 108,000.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,557.16 : 374,224.56 = 72,022 : x
  2. Step 2: Convert to fraction form
    249,557.16/374,224.56 = 72,022/x
  3. Step 3: Cross multiply
    249,557.16x = 374,224.56 × 72,022
  4. Step 4: Simplify right side
    249,557.16x = 26,952,401,260.32
  5. Step 5: Solve for x
    x = 26,952,401,260.32/249,557.16
  6. Step 6: Final answer
    x = 108,000.91

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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.