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Finding the Fourth Proportional to 236,039.01, 325,729.73 and 128,609.93

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Solution

The fourth proportional to 236,039.01, 325,729.73 and 128,609.93 is: 177,479.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,039.01 : 325,729.73 = 128,609.93 : x
  2. Step 2: Convert to fraction form
    236,039.01/325,729.73 = 128,609.93/x
  3. Step 3: Cross multiply
    236,039.01x = 325,729.73 × 128,609.93
  4. Step 4: Simplify right side
    236,039.01x = 41,892,075,502.52
  5. Step 5: Solve for x
    x = 41,892,075,502.52/236,039.01
  6. Step 6: Final answer
    x = 177,479.46

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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.