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Finding the Fourth Proportional to 74,709.96, 112,064.94 and 51,265.32

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Solution

The fourth proportional to 74,709.96, 112,064.94 and 51,265.32 is: 76,897.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,709.96 : 112,064.94 = 51,265.32 : x
  2. Step 2: Convert to fraction form
    74,709.96/112,064.94 = 51,265.32/x
  3. Step 3: Cross multiply
    74,709.96x = 112,064.94 × 51,265.32
  4. Step 4: Simplify right side
    74,709.96x = 5,745,045,009.88
  5. Step 5: Solve for x
    x = 5,745,045,009.88/74,709.96
  6. Step 6: Final answer
    x = 76,897.98

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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.