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Finding the Fourth Proportional to 127,393.53, 191,068.71 and 38,625.63

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Solution

The fourth proportional to 127,393.53, 191,068.71 and 38,625.63 is: 57,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,393.53 : 191,068.71 = 38,625.63 : x
  2. Step 2: Convert to fraction form
    127,393.53/191,068.71 = 38,625.63/x
  3. Step 3: Cross multiply
    127,393.53x = 191,068.71 × 38,625.63
  4. Step 4: Simplify right side
    127,393.53x = 7,380,149,297.04
  5. Step 5: Solve for x
    x = 7,380,149,297.04/127,393.53
  6. Step 6: Final answer
    x = 57,931.90

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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.