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Finding the Fourth Proportional to 84,048.01, 115,986.30 and 45,807.58

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Solution

The fourth proportional to 84,048.01, 115,986.30 and 45,807.58 is: 63,214.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,048.01 : 115,986.30 = 45,807.58 : x
  2. Step 2: Convert to fraction form
    84,048.01/115,986.30 = 45,807.58/x
  3. Step 3: Cross multiply
    84,048.01x = 115,986.30 × 45,807.58
  4. Step 4: Simplify right side
    84,048.01x = 5,313,051,716.15
  5. Step 5: Solve for x
    x = 5,313,051,716.15/84,048.01
  6. Step 6: Final answer
    x = 63,214.49

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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.