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Finding the Fourth Proportional to 186,876.40, 280,314.60 and 163,548.40

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Solution

The fourth proportional to 186,876.40, 280,314.60 and 163,548.40 is: 245,322.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,876.40 : 280,314.60 = 163,548.40 : x
  2. Step 2: Convert to fraction form
    186,876.40/280,314.60 = 163,548.40/x
  3. Step 3: Cross multiply
    186,876.40x = 280,314.60 × 163,548.40
  4. Step 4: Simplify right side
    186,876.40x = 45,845,004,326.64
  5. Step 5: Solve for x
    x = 45,845,004,326.64/186,876.40
  6. Step 6: Final answer
    x = 245,322.60

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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.