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Finding the Fourth Proportional to 249,021.80, 373,532.70 and 82,809.80

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Solution

The fourth proportional to 249,021.80, 373,532.70 and 82,809.80 is: 124,214.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,021.80 : 373,532.70 = 82,809.80 : x
  2. Step 2: Convert to fraction form
    249,021.80/373,532.70 = 82,809.80/x
  3. Step 3: Cross multiply
    249,021.80x = 373,532.70 × 82,809.80
  4. Step 4: Simplify right side
    249,021.80x = 30,932,168,180.46
  5. Step 5: Solve for x
    x = 30,932,168,180.46/249,021.80
  6. Step 6: Final answer
    x = 124,214.70

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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.