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Finding the Fourth Proportional to 249,200.96, 373,866.40 and 82,990.40

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Solution

The fourth proportional to 249,200.96, 373,866.40 and 82,990.40 is: 124,507.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,200.96 : 373,866.40 = 82,990.40 : x
  2. Step 2: Convert to fraction form
    249,200.96/373,866.40 = 82,990.40/x
  3. Step 3: Cross multiply
    249,200.96x = 373,866.40 × 82,990.40
  4. Step 4: Simplify right side
    249,200.96x = 31,027,322,082.56
  5. Step 5: Solve for x
    x = 31,027,322,082.56/249,200.96
  6. Step 6: Final answer
    x = 124,507.23

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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.