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Finding the Fourth Proportional to 166,818, 230,208.84 and 91,368.12

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Solution

The fourth proportional to 166,818, 230,208.84 and 91,368.12 is: 126,088.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,818 : 230,208.84 = 91,368.12 : x
  2. Step 2: Convert to fraction form
    166,818/230,208.84 = 91,368.12/x
  3. Step 3: Cross multiply
    166,818x = 230,208.84 × 91,368.12
  4. Step 4: Simplify right side
    166,818x = 21,033,748,918.18
  5. Step 5: Solve for x
    x = 21,033,748,918.18/166,818
  6. Step 6: Final answer
    x = 126,088.01

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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.