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Finding the Fourth Proportional to 177,139.16, 265,745.19 and 98,087.30

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Solution

The fourth proportional to 177,139.16, 265,745.19 and 98,087.30 is: 147,151.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,139.16 : 265,745.19 = 98,087.30 : x
  2. Step 2: Convert to fraction form
    177,139.16/265,745.19 = 98,087.30/x
  3. Step 3: Cross multiply
    177,139.16x = 265,745.19 × 98,087.30
  4. Step 4: Simplify right side
    177,139.16x = 26,066,228,175.09
  5. Step 5: Solve for x
    x = 26,066,228,175.09/177,139.16
  6. Step 6: Final answer
    x = 147,151.13

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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.