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Finding the Fourth Proportional to 173,899.30, 260,848.95 and 138,907.30

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Solution

The fourth proportional to 173,899.30, 260,848.95 and 138,907.30 is: 208,360.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,899.30 : 260,848.95 = 138,907.30 : x
  2. Step 2: Convert to fraction form
    173,899.30/260,848.95 = 138,907.30/x
  3. Step 3: Cross multiply
    173,899.30x = 260,848.95 × 138,907.30
  4. Step 4: Simplify right side
    173,899.30x = 36,233,823,352.34
  5. Step 5: Solve for x
    x = 36,233,823,352.34/173,899.30
  6. Step 6: Final answer
    x = 208,360.95

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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.