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Finding the Fourth Proportional to 173,801.10, 260,458.65 and 138,323.10

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Solution

The fourth proportional to 173,801.10, 260,458.65 and 138,323.10 is: 207,291.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,801.10 : 260,458.65 = 138,323.10 : x
  2. Step 2: Convert to fraction form
    173,801.10/260,458.65 = 138,323.10/x
  3. Step 3: Cross multiply
    173,801.10x = 260,458.65 × 138,323.10
  4. Step 4: Simplify right side
    173,801.10x = 36,027,447,889.82
  5. Step 5: Solve for x
    x = 36,027,447,889.82/173,801.10
  6. Step 6: Final answer
    x = 207,291.25

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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.