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Finding the Fourth Proportional to 96,907.79, 133,729.63 and 53,887.07

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Solution

The fourth proportional to 96,907.79, 133,729.63 and 53,887.07 is: 74,362.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,907.79 : 133,729.63 = 53,887.07 : x
  2. Step 2: Convert to fraction form
    96,907.79/133,729.63 = 53,887.07/x
  3. Step 3: Cross multiply
    96,907.79x = 133,729.63 × 53,887.07
  4. Step 4: Simplify right side
    96,907.79x = 7,206,297,129.52
  5. Step 5: Solve for x
    x = 7,206,297,129.52/96,907.79
  6. Step 6: Final answer
    x = 74,362.42

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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.