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Finding the Fourth Proportional to 147,696.39, 203,825.73 and 84,038.31

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Solution

The fourth proportional to 147,696.39, 203,825.73 and 84,038.31 is: 115,975.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,696.39 : 203,825.73 = 84,038.31 : x
  2. Step 2: Convert to fraction form
    147,696.39/203,825.73 = 84,038.31/x
  3. Step 3: Cross multiply
    147,696.39x = 203,825.73 × 84,038.31
  4. Step 4: Simplify right side
    147,696.39x = 17,129,169,883.72
  5. Step 5: Solve for x
    x = 17,129,169,883.72/147,696.39
  6. Step 6: Final answer
    x = 115,975.55

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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.