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Finding the Fourth Proportional to 60,507,324.60, 90,760,986.90 and 55,830,643.80

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Solution

The fourth proportional to 60,507,324.60, 90,760,986.90 and 55,830,643.80 is: 83,745,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,507,324.60 : 90,760,986.90 = 55,830,643.80 : x
  2. Step 2: Convert to fraction form
    60,507,324.60/90,760,986.90 = 55,830,643.80/x
  3. Step 3: Cross multiply
    60,507,324.60x = 90,760,986.90 × 55,830,643.80
  4. Step 4: Simplify right side
    60,507,324.60x = 5,067,244,330,550,366
  5. Step 5: Solve for x
    x = 5,067,244,330,550,366/60,507,324.60
  6. Step 6: Final answer
    x = 83,745,965.70

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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.