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Finding the Fourth Proportional to 288,993.37, 398,801.59 and 161,666.23

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Solution

The fourth proportional to 288,993.37, 398,801.59 and 161,666.23 is: 223,094.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,993.37 : 398,801.59 = 161,666.23 : x
  2. Step 2: Convert to fraction form
    288,993.37/398,801.59 = 161,666.23/x
  3. Step 3: Cross multiply
    288,993.37x = 398,801.59 × 161,666.23
  4. Step 4: Simplify right side
    288,993.37x = 64,472,749,573.31
  5. Step 5: Solve for x
    x = 64,472,749,573.31/288,993.37
  6. Step 6: Final answer
    x = 223,094.22

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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.