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Finding the Fourth Proportional to 136,365.01, 188,216.81 and 78,995.03

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Solution

The fourth proportional to 136,365.01, 188,216.81 and 78,995.03 is: 109,032.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,365.01 : 188,216.81 = 78,995.03 : x
  2. Step 2: Convert to fraction form
    136,365.01/188,216.81 = 78,995.03/x
  3. Step 3: Cross multiply
    136,365.01x = 188,216.81 × 78,995.03
  4. Step 4: Simplify right side
    136,365.01x = 14,868,192,552.45
  5. Step 5: Solve for x
    x = 14,868,192,552.45/136,365.01
  6. Step 6: Final answer
    x = 109,032.31

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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.