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Finding the Fourth Proportional to 114,838.37, 172,261.40 and 39,964.80

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Solution

The fourth proportional to 114,838.37, 172,261.40 and 39,964.80 is: 59,948.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,838.37 : 172,261.40 = 39,964.80 : x
  2. Step 2: Convert to fraction form
    114,838.37/172,261.40 = 39,964.80/x
  3. Step 3: Cross multiply
    114,838.37x = 172,261.40 × 39,964.80
  4. Step 4: Simplify right side
    114,838.37x = 6,884,392,398.72
  5. Step 5: Solve for x
    x = 6,884,392,398.72/114,838.37
  6. Step 6: Final answer
    x = 59,948.54

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1.5x scale

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.