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Finding the Fourth Proportional to 236,030.01, 325,717.28 and 128,600.81

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Solution

The fourth proportional to 236,030.01, 325,717.28 and 128,600.81 is: 177,466.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,030.01 : 325,717.28 = 128,600.81 : x
  2. Step 2: Convert to fraction form
    236,030.01/325,717.28 = 128,600.81/x
  3. Step 3: Cross multiply
    236,030.01x = 325,717.28 × 128,600.81
  4. Step 4: Simplify right side
    236,030.01x = 41,887,505,395.99
  5. Step 5: Solve for x
    x = 41,887,505,395.99/236,030.01
  6. Step 6: Final answer
    x = 177,466.87

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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.