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Finding the Fourth Proportional to 74,300.96, 102,575.11 and 57,267.88

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Solution

The fourth proportional to 74,300.96, 102,575.11 and 57,267.88 is: 79,060.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,300.96 : 102,575.11 = 57,267.88 : x
  2. Step 2: Convert to fraction form
    74,300.96/102,575.11 = 57,267.88/x
  3. Step 3: Cross multiply
    74,300.96x = 102,575.11 × 57,267.88
  4. Step 4: Simplify right side
    74,300.96x = 5,874,259,090.47
  5. Step 5: Solve for x
    x = 5,874,259,090.47/74,300.96
  6. Step 6: Final answer
    x = 79,060.34

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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.