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Finding the Fourth Proportional to 69,303.83, 95,641.70 and 39,090.42

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Solution

The fourth proportional to 69,303.83, 95,641.70 and 39,090.42 is: 53,946.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,303.83 : 95,641.70 = 39,090.42 : x
  2. Step 2: Convert to fraction form
    69,303.83/95,641.70 = 39,090.42/x
  3. Step 3: Cross multiply
    69,303.83x = 95,641.70 × 39,090.42
  4. Step 4: Simplify right side
    69,303.83x = 3,738,674,027.06
  5. Step 5: Solve for x
    x = 3,738,674,027.06/69,303.83
  6. Step 6: Final answer
    x = 53,946.14

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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.