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Finding the Fourth Proportional to 112,883, 155,783.40 and 62,582

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Solution

The fourth proportional to 112,883, 155,783.40 and 62,582 is: 86,365.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,883 : 155,783.40 = 62,582 : x
  2. Step 2: Convert to fraction form
    112,883/155,783.40 = 62,582/x
  3. Step 3: Cross multiply
    112,883x = 155,783.40 × 62,582
  4. Step 4: Simplify right side
    112,883x = 9,749,236,738.80
  5. Step 5: Solve for x
    x = 9,749,236,738.80/112,883
  6. Step 6: Final answer
    x = 86,365.85

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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.