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Finding the Fourth Proportional to 127,375.93, 191,068.15 and 57,255.45

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Solution

The fourth proportional to 127,375.93, 191,068.15 and 57,255.45 is: 85,885.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,375.93 : 191,068.15 = 57,255.45 : x
  2. Step 2: Convert to fraction form
    127,375.93/191,068.15 = 57,255.45/x
  3. Step 3: Cross multiply
    127,375.93x = 191,068.15 × 57,255.45
  4. Step 4: Simplify right side
    127,375.93x = 10,939,691,953.58
  5. Step 5: Solve for x
    x = 10,939,691,953.58/127,375.93
  6. Step 6: Final answer
    x = 85,885.08

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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.