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Finding the Fourth Proportional to 222,783.88, 307,458.02 and 127,288.53

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Solution

The fourth proportional to 222,783.88, 307,458.02 and 127,288.53 is: 175,667.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,783.88 : 307,458.02 = 127,288.53 : x
  2. Step 2: Convert to fraction form
    222,783.88/307,458.02 = 127,288.53/x
  3. Step 3: Cross multiply
    222,783.88x = 307,458.02 × 127,288.53
  4. Step 4: Simplify right side
    222,783.88x = 39,135,879,402.51
  5. Step 5: Solve for x
    x = 39,135,879,402.51/222,783.88
  6. Step 6: Final answer
    x = 175,667.46

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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.