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Finding the Fourth Proportional to 249,071.20, 373,606.80 and 82,859.20

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Solution

The fourth proportional to 249,071.20, 373,606.80 and 82,859.20 is: 124,288.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,071.20 : 373,606.80 = 82,859.20 : x
  2. Step 2: Convert to fraction form
    249,071.20/373,606.80 = 82,859.20/x
  3. Step 3: Cross multiply
    249,071.20x = 373,606.80 × 82,859.20
  4. Step 4: Simplify right side
    249,071.20x = 30,956,760,562.56
  5. Step 5: Solve for x
    x = 30,956,760,562.56/249,071.20
  6. Step 6: Final answer
    x = 124,288.80

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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.