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Finding the Fourth Proportional to 112,955.76, 169,428.52 and 49,758.98

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Solution

The fourth proportional to 112,955.76, 169,428.52 and 49,758.98 is: 74,636.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,955.76 : 169,428.52 = 49,758.98 : x
  2. Step 2: Convert to fraction form
    112,955.76/169,428.52 = 49,758.98/x
  3. Step 3: Cross multiply
    112,955.76x = 169,428.52 × 49,758.98
  4. Step 4: Simplify right side
    112,955.76x = 8,430,590,338.11
  5. Step 5: Solve for x
    x = 8,430,590,338.11/112,955.76
  6. Step 6: Final answer
    x = 74,636.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.