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Finding the Fourth Proportional to 173,841.28, 239,904.64 and 105,861.12

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Solution

The fourth proportional to 173,841.28, 239,904.64 and 105,861.12 is: 146,090.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,841.28 : 239,904.64 = 105,861.12 : x
  2. Step 2: Convert to fraction form
    173,841.28/239,904.64 = 105,861.12/x
  3. Step 3: Cross multiply
    173,841.28x = 239,904.64 × 105,861.12
  4. Step 4: Simplify right side
    173,841.28x = 25,396,573,883.60
  5. Step 5: Solve for x
    x = 25,396,573,883.60/173,841.28
  6. Step 6: Final answer
    x = 146,090.58

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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.