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Finding the Fourth Proportional to 72,263.34, 99,751.10 and 48,381.30

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Solution

The fourth proportional to 72,263.34, 99,751.10 and 48,381.30 is: 66,784.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,263.34 : 99,751.10 = 48,381.30 : x
  2. Step 2: Convert to fraction form
    72,263.34/99,751.10 = 48,381.30/x
  3. Step 3: Cross multiply
    72,263.34x = 99,751.10 × 48,381.30
  4. Step 4: Simplify right side
    72,263.34x = 4,826,087,652.52
  5. Step 5: Solve for x
    x = 4,826,087,652.52/72,263.34
  6. Step 6: Final answer
    x = 66,784.73

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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.