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Finding the Fourth Proportional to 111,196, 166,811.28 and 37,341.28

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Solution

The fourth proportional to 111,196, 166,811.28 and 37,341.28 is: 56,017.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,196 : 166,811.28 = 37,341.28 : x
  2. Step 2: Convert to fraction form
    111,196/166,811.28 = 37,341.28/x
  3. Step 3: Cross multiply
    111,196x = 166,811.28 × 37,341.28
  4. Step 4: Simplify right side
    111,196x = 6,228,946,713.64
  5. Step 5: Solve for x
    x = 6,228,946,713.64/111,196
  6. Step 6: Final answer
    x = 56,017.72

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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.