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Finding the Fourth Proportional to 72,296.85, 99,775.35 and 53,263.65

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Solution

The fourth proportional to 72,296.85, 99,775.35 and 53,263.65 is: 73,508.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,296.85 : 99,775.35 = 53,263.65 : x
  2. Step 2: Convert to fraction form
    72,296.85/99,775.35 = 53,263.65/x
  3. Step 3: Cross multiply
    72,296.85x = 99,775.35 × 53,263.65
  4. Step 4: Simplify right side
    72,296.85x = 5,314,399,321.03
  5. Step 5: Solve for x
    x = 5,314,399,321.03/72,296.85
  6. Step 6: Final answer
    x = 73,508.03

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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.