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Finding the Fourth Proportional to 216,587.64, 298,900.26 and 121,094.31

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Solution

The fourth proportional to 216,587.64, 298,900.26 and 121,094.31 is: 167,115.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,587.64 : 298,900.26 = 121,094.31 : x
  2. Step 2: Convert to fraction form
    216,587.64/298,900.26 = 121,094.31/x
  3. Step 3: Cross multiply
    216,587.64x = 298,900.26 × 121,094.31
  4. Step 4: Simplify right side
    216,587.64x = 36,195,120,743.52
  5. Step 5: Solve for x
    x = 36,195,120,743.52/216,587.64
  6. Step 6: Final answer
    x = 167,115.36

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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.