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Finding the Fourth Proportional to 222,767.10, 307,390.28 and 127,279.98

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Solution

The fourth proportional to 222,767.10, 307,390.28 and 127,279.98 is: 175,630.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,767.10 : 307,390.28 = 127,279.98 : x
  2. Step 2: Convert to fraction form
    222,767.10/307,390.28 = 127,279.98/x
  3. Step 3: Cross multiply
    222,767.10x = 307,390.28 × 127,279.98
  4. Step 4: Simplify right side
    222,767.10x = 39,124,628,054.19
  5. Step 5: Solve for x
    x = 39,124,628,054.19/222,767.10
  6. Step 6: Final answer
    x = 175,630.19

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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.