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Finding the Fourth Proportional to 75,425.42, 112,573.76 and 74,179.94

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Solution

The fourth proportional to 75,425.42, 112,573.76 and 74,179.94 is: 110,714.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,425.42 : 112,573.76 = 74,179.94 : x
  2. Step 2: Convert to fraction form
    75,425.42/112,573.76 = 74,179.94/x
  3. Step 3: Cross multiply
    75,425.42x = 112,573.76 × 74,179.94
  4. Step 4: Simplify right side
    75,425.42x = 8,350,714,762.37
  5. Step 5: Solve for x
    x = 8,350,714,762.37/75,425.42
  6. Step 6: Final answer
    x = 110,714.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.