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Finding the Fourth Proportional to 171,777.16, 237,058.50 and 100,145.08

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Solution

The fourth proportional to 171,777.16, 237,058.50 and 100,145.08 is: 138,203.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,777.16 : 237,058.50 = 100,145.08 : x
  2. Step 2: Convert to fraction form
    171,777.16/237,058.50 = 100,145.08/x
  3. Step 3: Cross multiply
    171,777.16x = 237,058.50 × 100,145.08
  4. Step 4: Simplify right side
    171,777.16x = 23,740,242,447.18
  5. Step 5: Solve for x
    x = 23,740,242,447.18/171,777.16
  6. Step 6: Final answer
    x = 138,203.72

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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.