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Finding the Fourth Proportional to 201,859.16, 278,544.76 and 124,322.45

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Solution

The fourth proportional to 201,859.16, 278,544.76 and 124,322.45 is: 171,552.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,859.16 : 278,544.76 = 124,322.45 : x
  2. Step 2: Convert to fraction form
    201,859.16/278,544.76 = 124,322.45/x
  3. Step 3: Cross multiply
    201,859.16x = 278,544.76 × 124,322.45
  4. Step 4: Simplify right side
    201,859.16x = 34,629,365,294.33
  5. Step 5: Solve for x
    x = 34,629,365,294.33/201,859.16
  6. Step 6: Final answer
    x = 171,552.12

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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.