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Finding the Fourth Proportional to 186,028.80, 256,716.72 and 101,148

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Solution

The fourth proportional to 186,028.80, 256,716.72 and 101,148 is: 139,582.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,028.80 : 256,716.72 = 101,148 : x
  2. Step 2: Convert to fraction form
    186,028.80/256,716.72 = 101,148/x
  3. Step 3: Cross multiply
    186,028.80x = 256,716.72 × 101,148
  4. Step 4: Simplify right side
    186,028.80x = 25,966,382,794.56
  5. Step 5: Solve for x
    x = 25,966,382,794.56/186,028.80
  6. Step 6: Final answer
    x = 139,582.60

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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.