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Finding the Fourth Proportional to 173,259.90, 259,695.45 and 98,415.90

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Solution

The fourth proportional to 173,259.90, 259,695.45 and 98,415.90 is: 147,513.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,259.90 : 259,695.45 = 98,415.90 : x
  2. Step 2: Convert to fraction form
    173,259.90/259,695.45 = 98,415.90/x
  3. Step 3: Cross multiply
    173,259.90x = 259,695.45 × 98,415.90
  4. Step 4: Simplify right side
    173,259.90x = 25,558,161,437.66
  5. Step 5: Solve for x
    x = 25,558,161,437.66/173,259.90
  6. Step 6: Final answer
    x = 147,513.43

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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.