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Finding the Fourth Proportional to 173,353.69, 239,156.85 and 105,359.70

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Solution

The fourth proportional to 173,353.69, 239,156.85 and 105,359.70 is: 145,353.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,353.69 : 239,156.85 = 105,359.70 : x
  2. Step 2: Convert to fraction form
    173,353.69/239,156.85 = 105,359.70/x
  3. Step 3: Cross multiply
    173,353.69x = 239,156.85 × 105,359.70
  4. Step 4: Simplify right side
    173,353.69x = 25,197,493,968.95
  5. Step 5: Solve for x
    x = 25,197,493,968.95/173,353.69
  6. Step 6: Final answer
    x = 145,353.09

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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.