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Finding the Fourth Proportional to 167,857.60, 251,598.48 and 128,575.84

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Solution

The fourth proportional to 167,857.60, 251,598.48 and 128,575.84 is: 192,719.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,857.60 : 251,598.48 = 128,575.84 : x
  2. Step 2: Convert to fraction form
    167,857.60/251,598.48 = 128,575.84/x
  3. Step 3: Cross multiply
    167,857.60x = 251,598.48 × 128,575.84
  4. Step 4: Simplify right side
    167,857.60x = 32,349,485,908.72
  5. Step 5: Solve for x
    x = 32,349,485,908.72/167,857.60
  6. Step 6: Final answer
    x = 192,719.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.