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Finding the Fourth Proportional to 249,042.80, 373,564.20 and 82,830.80

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Solution

The fourth proportional to 249,042.80, 373,564.20 and 82,830.80 is: 124,246.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,042.80 : 373,564.20 = 82,830.80 : x
  2. Step 2: Convert to fraction form
    249,042.80/373,564.20 = 82,830.80/x
  3. Step 3: Cross multiply
    249,042.80x = 373,564.20 × 82,830.80
  4. Step 4: Simplify right side
    249,042.80x = 30,942,621,537.36
  5. Step 5: Solve for x
    x = 30,942,621,537.36/249,042.80
  6. Step 6: Final answer
    x = 124,246.20

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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.