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Finding the Fourth Proportional to 72,702.76, 100,333.38 and 44,403.88

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Solution

The fourth proportional to 72,702.76, 100,333.38 and 44,403.88 is: 61,279.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,702.76 : 100,333.38 = 44,403.88 : x
  2. Step 2: Convert to fraction form
    72,702.76/100,333.38 = 44,403.88/x
  3. Step 3: Cross multiply
    72,702.76x = 100,333.38 × 44,403.88
  4. Step 4: Simplify right side
    72,702.76x = 4,455,191,365.51
  5. Step 5: Solve for x
    x = 4,455,191,365.51/72,702.76
  6. Step 6: Final answer
    x = 61,279.54

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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.