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Finding the Fourth Proportional to 186,656.90, 279,985.35 and 168,286.10

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Solution

The fourth proportional to 186,656.90, 279,985.35 and 168,286.10 is: 252,429.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,656.90 : 279,985.35 = 168,286.10 : x
  2. Step 2: Convert to fraction form
    186,656.90/279,985.35 = 168,286.10/x
  3. Step 3: Cross multiply
    186,656.90x = 279,985.35 × 168,286.10
  4. Step 4: Simplify right side
    186,656.90x = 47,117,642,608.64
  5. Step 5: Solve for x
    x = 47,117,642,608.64/186,656.90
  6. Step 6: Final answer
    x = 252,429.15

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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.