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Finding the Fourth Proportional to 147,696.40, 203,818.40 and 84,032.80

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Solution

The fourth proportional to 147,696.40, 203,818.40 and 84,032.80 is: 115,963.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,696.40 : 203,818.40 = 84,032.80 : x
  2. Step 2: Convert to fraction form
    147,696.40/203,818.40 = 84,032.80/x
  3. Step 3: Cross multiply
    147,696.40x = 203,818.40 × 84,032.80
  4. Step 4: Simplify right side
    147,696.40x = 17,127,430,843.52
  5. Step 5: Solve for x
    x = 17,127,430,843.52/147,696.40
  6. Step 6: Final answer
    x = 115,963.77

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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.