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Finding the Fourth Proportional to 222,894.18, 307,615.19 and 127,382.36

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Solution

The fourth proportional to 222,894.18, 307,615.19 and 127,382.36 is: 175,799.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,894.18 : 307,615.19 = 127,382.36 : x
  2. Step 2: Convert to fraction form
    222,894.18/307,615.19 = 127,382.36/x
  3. Step 3: Cross multiply
    222,894.18x = 307,615.19 × 127,382.36
  4. Step 4: Simplify right side
    222,894.18x = 39,184,746,699.06
  5. Step 5: Solve for x
    x = 39,184,746,699.06/222,894.18
  6. Step 6: Final answer
    x = 175,799.78

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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.