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Finding the Fourth Proportional to 186,654.40, 279,981.60 and 164,881.60

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Solution

The fourth proportional to 186,654.40, 279,981.60 and 164,881.60 is: 247,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,654.40 : 279,981.60 = 164,881.60 : x
  2. Step 2: Convert to fraction form
    186,654.40/279,981.60 = 164,881.60/x
  3. Step 3: Cross multiply
    186,654.40x = 279,981.60 × 164,881.60
  4. Step 4: Simplify right side
    186,654.40x = 46,163,814,178.56
  5. Step 5: Solve for x
    x = 46,163,814,178.56/186,654.40
  6. Step 6: Final answer
    x = 247,322.40

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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.