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Finding the Fourth Proportional to 269,333.80, 404,000.70 and 157,140.70

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Solution

The fourth proportional to 269,333.80, 404,000.70 and 157,140.70 is: 235,711.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,333.80 : 404,000.70 = 157,140.70 : x
  2. Step 2: Convert to fraction form
    269,333.80/404,000.70 = 157,140.70/x
  3. Step 3: Cross multiply
    269,333.80x = 404,000.70 × 157,140.70
  4. Step 4: Simplify right side
    269,333.80x = 63,484,952,798.49
  5. Step 5: Solve for x
    x = 63,484,952,798.49/269,333.80
  6. Step 6: Final answer
    x = 235,711.05

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1.5x scale

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.