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Finding the Fourth Proportional to 235,782.22, 325,382.22 and 128,354.14

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Solution

The fourth proportional to 235,782.22, 325,382.22 and 128,354.14 is: 177,130.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,782.22 : 325,382.22 = 128,354.14 : x
  2. Step 2: Convert to fraction form
    235,782.22/325,382.22 = 128,354.14/x
  3. Step 3: Cross multiply
    235,782.22x = 325,382.22 × 128,354.14
  4. Step 4: Simplify right side
    235,782.22x = 41,764,155,019.39
  5. Step 5: Solve for x
    x = 41,764,155,019.39/235,782.22
  6. Step 6: Final answer
    x = 177,130.21

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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.