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Finding the Fourth Proportional to 308,050.70, 425,106.51 and 180,701.78

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Solution

The fourth proportional to 308,050.70, 425,106.51 and 180,701.78 is: 249,366.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,050.70 : 425,106.51 = 180,701.78 : x
  2. Step 2: Convert to fraction form
    308,050.70/425,106.51 = 180,701.78/x
  3. Step 3: Cross multiply
    308,050.70x = 425,106.51 × 180,701.78
  4. Step 4: Simplify right side
    308,050.70x = 76,817,503,046.59
  5. Step 5: Solve for x
    x = 76,817,503,046.59/308,050.70
  6. Step 6: Final answer
    x = 249,366.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.