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Finding the Fourth Proportional to 186,128.73, 256,859.64 and 101,246.00

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Solution

The fourth proportional to 186,128.73, 256,859.64 and 101,246.00 is: 139,720.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,128.73 : 256,859.64 = 101,246.00 : x
  2. Step 2: Convert to fraction form
    186,128.73/256,859.64 = 101,246.00/x
  3. Step 3: Cross multiply
    186,128.73x = 256,859.64 × 101,246.00
  4. Step 4: Simplify right side
    186,128.73x = 26,006,009,827.14
  5. Step 5: Solve for x
    x = 26,006,009,827.14/186,128.73
  6. Step 6: Final answer
    x = 139,720.56

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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.