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Finding the Fourth Proportional to 118,328.20, 177,466.70 and 51,768.20

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Solution

The fourth proportional to 118,328.20, 177,466.70 and 51,768.20 is: 77,641.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,328.20 : 177,466.70 = 51,768.20 : x
  2. Step 2: Convert to fraction form
    118,328.20/177,466.70 = 51,768.20/x
  3. Step 3: Cross multiply
    118,328.20x = 177,466.70 × 51,768.20
  4. Step 4: Simplify right side
    118,328.20x = 9,187,131,618.94
  5. Step 5: Solve for x
    x = 9,187,131,618.94/118,328.20
  6. Step 6: Final answer
    x = 77,641.10

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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.