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Finding the Fourth Proportional to 186,124.88, 256,854.12 and 101,242.64

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Solution

The fourth proportional to 186,124.88, 256,854.12 and 101,242.64 is: 139,715.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,124.88 : 256,854.12 = 101,242.64 : x
  2. Step 2: Convert to fraction form
    186,124.88/256,854.12 = 101,242.64/x
  3. Step 3: Cross multiply
    186,124.88x = 256,854.12 × 101,242.64
  4. Step 4: Simplify right side
    186,124.88x = 26,004,589,203.68
  5. Step 5: Solve for x
    x = 26,004,589,203.68/186,124.88
  6. Step 6: Final answer
    x = 139,715.81

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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.