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Finding the Fourth Proportional to 104,298.67, 155,106.23 and 100,977.19

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Solution

The fourth proportional to 104,298.67, 155,106.23 and 100,977.19 is: 150,166.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,298.67 : 155,106.23 = 100,977.19 : x
  2. Step 2: Convert to fraction form
    104,298.67/155,106.23 = 100,977.19/x
  3. Step 3: Cross multiply
    104,298.67x = 155,106.23 × 100,977.19
  4. Step 4: Simplify right side
    104,298.67x = 15,662,191,256.89
  5. Step 5: Solve for x
    x = 15,662,191,256.89/104,298.67
  6. Step 6: Final answer
    x = 150,166.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.