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Finding the Fourth Proportional to 173,534.88, 239,495.80 and 105,556.54

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Solution

The fourth proportional to 173,534.88, 239,495.80 and 105,556.54 is: 145,678.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,534.88 : 239,495.80 = 105,556.54 : x
  2. Step 2: Convert to fraction form
    173,534.88/239,495.80 = 105,556.54/x
  3. Step 3: Cross multiply
    173,534.88x = 239,495.80 × 105,556.54
  4. Step 4: Simplify right side
    173,534.88x = 25,280,347,992.53
  5. Step 5: Solve for x
    x = 25,280,347,992.53/173,534.88
  6. Step 6: Final answer
    x = 145,678.77

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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.