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Finding the Fourth Proportional to 186,365.72, 256,894.26 and 156,097.64

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Solution

The fourth proportional to 186,365.72, 256,894.26 and 156,097.64 is: 215,171.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,365.72 : 256,894.26 = 156,097.64 : x
  2. Step 2: Convert to fraction form
    186,365.72/256,894.26 = 156,097.64/x
  3. Step 3: Cross multiply
    186,365.72x = 256,894.26 × 156,097.64
  4. Step 4: Simplify right side
    186,365.72x = 40,100,587,715.55
  5. Step 5: Solve for x
    x = 40,100,587,715.55/186,365.72
  6. Step 6: Final answer
    x = 215,171.48

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1.5x scale

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.