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Finding the Fourth Proportional to 147,386.01, 203,386.83 and 83,716.77

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Solution

The fourth proportional to 147,386.01, 203,386.83 and 83,716.77 is: 115,525.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,386.01 : 203,386.83 = 83,716.77 : x
  2. Step 2: Convert to fraction form
    147,386.01/203,386.83 = 83,716.77/x
  3. Step 3: Cross multiply
    147,386.01x = 203,386.83 × 83,716.77
  4. Step 4: Simplify right side
    147,386.01x = 17,026,888,468.14
  5. Step 5: Solve for x
    x = 17,026,888,468.14/147,386.01
  6. Step 6: Final answer
    x = 115,525.81

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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.