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Finding the Fourth Proportional to 173,346.48, 239,245.58 and 105,384.71

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Solution

The fourth proportional to 173,346.48, 239,245.58 and 105,384.71 is: 145,447.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,346.48 : 239,245.58 = 105,384.71 : x
  2. Step 2: Convert to fraction form
    173,346.48/239,245.58 = 105,384.71/x
  3. Step 3: Cross multiply
    173,346.48x = 239,245.58 × 105,384.71
  4. Step 4: Simplify right side
    173,346.48x = 25,212,826,928.66
  5. Step 5: Solve for x
    x = 25,212,826,928.66/173,346.48
  6. Step 6: Final answer
    x = 145,447.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.