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Finding the Fourth Proportional to 265,699.05, 398,461.86 and 88,158.39

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Solution

The fourth proportional to 265,699.05, 398,461.86 and 88,158.39 is: 132,208.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,699.05 : 398,461.86 = 88,158.39 : x
  2. Step 2: Convert to fraction form
    265,699.05/398,461.86 = 88,158.39/x
  3. Step 3: Cross multiply
    265,699.05x = 398,461.86 × 88,158.39
  4. Step 4: Simplify right side
    265,699.05x = 35,127,756,054.01
  5. Step 5: Solve for x
    x = 35,127,756,054.01/265,699.05
  6. Step 6: Final answer
    x = 132,208.81

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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.