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Finding the Fourth Proportional to 134,894.33, 186,144.63 and 74,455.28

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Solution

The fourth proportional to 134,894.33, 186,144.63 and 74,455.28 is: 102,743.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,894.33 : 186,144.63 = 74,455.28 : x
  2. Step 2: Convert to fraction form
    134,894.33/186,144.63 = 74,455.28/x
  3. Step 3: Cross multiply
    134,894.33x = 186,144.63 × 74,455.28
  4. Step 4: Simplify right side
    134,894.33x = 13,859,450,547.15
  5. Step 5: Solve for x
    x = 13,859,450,547.15/134,894.33
  6. Step 6: Final answer
    x = 102,743.02

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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.