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Finding the Fourth Proportional to 173,645.40, 260,468.10 and 48,986.40

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Solution

The fourth proportional to 173,645.40, 260,468.10 and 48,986.40 is: 73,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,645.40 : 260,468.10 = 48,986.40 : x
  2. Step 2: Convert to fraction form
    173,645.40/260,468.10 = 48,986.40/x
  3. Step 3: Cross multiply
    173,645.40x = 260,468.10 × 48,986.40
  4. Step 4: Simplify right side
    173,645.40x = 12,759,394,533.84
  5. Step 5: Solve for x
    x = 12,759,394,533.84/173,645.40
  6. Step 6: Final answer
    x = 73,479.60

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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.