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Finding the Fourth Proportional to 147,603.06, 203,685.03 and 83,939.49

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Solution

The fourth proportional to 147,603.06, 203,685.03 and 83,939.49 is: 115,832.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,603.06 : 203,685.03 = 83,939.49 : x
  2. Step 2: Convert to fraction form
    147,603.06/203,685.03 = 83,939.49/x
  3. Step 3: Cross multiply
    147,603.06x = 203,685.03 × 83,939.49
  4. Step 4: Simplify right side
    147,603.06x = 17,097,217,538.83
  5. Step 5: Solve for x
    x = 17,097,217,538.83/147,603.06
  6. Step 6: Final answer
    x = 115,832.41

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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.