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Finding the Fourth Proportional to 112,100.49, 168,106.99 and 48,939.93

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Solution

The fourth proportional to 112,100.49, 168,106.99 and 48,939.93 is: 73,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,100.49 : 168,106.99 = 48,939.93 : x
  2. Step 2: Convert to fraction form
    112,100.49/168,106.99 = 48,939.93/x
  3. Step 3: Cross multiply
    112,100.49x = 168,106.99 × 48,939.93
  4. Step 4: Simplify right side
    112,100.49x = 8,227,144,323.11
  5. Step 5: Solve for x
    x = 8,227,144,323.11/112,100.49
  6. Step 6: Final answer
    x = 73,390.80

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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.