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Finding the Fourth Proportional to 84,800.30, 117,010.78 and 48,995.06

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Solution

The fourth proportional to 84,800.30, 117,010.78 and 48,995.06 is: 67,605.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,800.30 : 117,010.78 = 48,995.06 : x
  2. Step 2: Convert to fraction form
    84,800.30/117,010.78 = 48,995.06/x
  3. Step 3: Cross multiply
    84,800.30x = 117,010.78 × 48,995.06
  4. Step 4: Simplify right side
    84,800.30x = 5,732,949,479.21
  5. Step 5: Solve for x
    x = 5,732,949,479.21/84,800.30
  6. Step 6: Final answer
    x = 67,605.30

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1.5x scale

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.