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Finding the Fourth Proportional to 202,217.60, 279,058.44 and 111,574.40

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Solution

The fourth proportional to 202,217.60, 279,058.44 and 111,574.40 is: 153,971.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,217.60 : 279,058.44 = 111,574.40 : x
  2. Step 2: Convert to fraction form
    202,217.60/279,058.44 = 111,574.40/x
  3. Step 3: Cross multiply
    202,217.60x = 279,058.44 × 111,574.40
  4. Step 4: Simplify right side
    202,217.60x = 31,135,778,007.94
  5. Step 5: Solve for x
    x = 31,135,778,007.94/202,217.60
  6. Step 6: Final answer
    x = 153,971.65

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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.