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Finding the Fourth Proportional to 220,854.36, 304,786.44 and 124,075.32

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Solution

The fourth proportional to 220,854.36, 304,786.44 and 124,075.32 is: 171,228.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,854.36 : 304,786.44 = 124,075.32 : x
  2. Step 2: Convert to fraction form
    220,854.36/304,786.44 = 124,075.32/x
  3. Step 3: Cross multiply
    220,854.36x = 304,786.44 × 124,075.32
  4. Step 4: Simplify right side
    220,854.36x = 37,816,475,074.66
  5. Step 5: Solve for x
    x = 37,816,475,074.66/220,854.36
  6. Step 6: Final answer
    x = 171,228.11

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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.