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Finding the Fourth Proportional to 265,881.25, 398,735.61 and 88,340.59

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Solution

The fourth proportional to 265,881.25, 398,735.61 and 88,340.59 is: 132,482.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,881.25 : 398,735.61 = 88,340.59 : x
  2. Step 2: Convert to fraction form
    265,881.25/398,735.61 = 88,340.59/x
  3. Step 3: Cross multiply
    265,881.25x = 398,735.61 × 88,340.59
  4. Step 4: Simplify right side
    265,881.25x = 35,224,539,041.41
  5. Step 5: Solve for x
    x = 35,224,539,041.41/265,881.25
  6. Step 6: Final answer
    x = 132,482.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.