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Finding the Fourth Proportional to 123,607.99, 170,582.37 and 69,901

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Solution

The fourth proportional to 123,607.99, 170,582.37 and 69,901 is: 96,465.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,607.99 : 170,582.37 = 69,901 : x
  2. Step 2: Convert to fraction form
    123,607.99/170,582.37 = 69,901/x
  3. Step 3: Cross multiply
    123,607.99x = 170,582.37 × 69,901
  4. Step 4: Simplify right side
    123,607.99x = 11,923,877,895.87
  5. Step 5: Solve for x
    x = 11,923,877,895.87/123,607.99
  6. Step 6: Final answer
    x = 96,465.27

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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.