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Finding the Fourth Proportional to 265,597.72, 398,396.64 and 88,118.08

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Solution

The fourth proportional to 265,597.72, 398,396.64 and 88,118.08 is: 132,177.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,597.72 : 398,396.64 = 88,118.08 : x
  2. Step 2: Convert to fraction form
    265,597.72/398,396.64 = 88,118.08/x
  3. Step 3: Cross multiply
    265,597.72x = 398,396.64 × 88,118.08
  4. Step 4: Simplify right side
    265,597.72x = 35,105,946,995.25
  5. Step 5: Solve for x
    x = 35,105,946,995.25/265,597.72
  6. Step 6: Final answer
    x = 132,177.14

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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.