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Finding the Fourth Proportional to 74,852.85, 112,223.12 and 45,264.63

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Solution

The fourth proportional to 74,852.85, 112,223.12 and 45,264.63 is: 67,862.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,852.85 : 112,223.12 = 45,264.63 : x
  2. Step 2: Convert to fraction form
    74,852.85/112,223.12 = 45,264.63/x
  3. Step 3: Cross multiply
    74,852.85x = 112,223.12 × 45,264.63
  4. Step 4: Simplify right side
    74,852.85x = 5,079,737,777.92
  5. Step 5: Solve for x
    x = 5,079,737,777.92/74,852.85
  6. Step 6: Final answer
    x = 67,862.98

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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.