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Finding the Fourth Proportional to 173,620.35, 260,041.72 and 103,636.35

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Solution

The fourth proportional to 173,620.35, 260,041.72 and 103,636.35 is: 155,222.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,620.35 : 260,041.72 = 103,636.35 : x
  2. Step 2: Convert to fraction form
    173,620.35/260,041.72 = 103,636.35/x
  3. Step 3: Cross multiply
    173,620.35x = 260,041.72 × 103,636.35
  4. Step 4: Simplify right side
    173,620.35x = 26,949,774,708.52
  5. Step 5: Solve for x
    x = 26,949,774,708.52/173,620.35
  6. Step 6: Final answer
    x = 155,222.44

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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.