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Finding the Fourth Proportional to 112,199.58, 154,834.47 and 61,897.50

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Solution

The fourth proportional to 112,199.58, 154,834.47 and 61,897.50 is: 85,418.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,199.58 : 154,834.47 = 61,897.50 : x
  2. Step 2: Convert to fraction form
    112,199.58/154,834.47 = 61,897.50/x
  3. Step 3: Cross multiply
    112,199.58x = 154,834.47 × 61,897.50
  4. Step 4: Simplify right side
    112,199.58x = 9,583,866,606.83
  5. Step 5: Solve for x
    x = 9,583,866,606.83/112,199.58
  6. Step 6: Final answer
    x = 85,418.03

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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.