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Finding the Fourth Proportional to 186,384.62, 257,244.48 and 109,899.16

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Solution

The fourth proportional to 186,384.62, 257,244.48 and 109,899.16 is: 151,680.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,384.62 : 257,244.48 = 109,899.16 : x
  2. Step 2: Convert to fraction form
    186,384.62/257,244.48 = 109,899.16/x
  3. Step 3: Cross multiply
    186,384.62x = 257,244.48 × 109,899.16
  4. Step 4: Simplify right side
    186,384.62x = 28,270,952,266.64
  5. Step 5: Solve for x
    x = 28,270,952,266.64/186,384.62
  6. Step 6: Final answer
    x = 151,680.71

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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.