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Finding the Fourth Proportional to 144,271.94, 216,451.65 and 69,370.84

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Solution

The fourth proportional to 144,271.94, 216,451.65 and 69,370.84 is: 104,077.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,271.94 : 216,451.65 = 69,370.84 : x
  2. Step 2: Convert to fraction form
    144,271.94/216,451.65 = 69,370.84/x
  3. Step 3: Cross multiply
    144,271.94x = 216,451.65 × 69,370.84
  4. Step 4: Simplify right side
    144,271.94x = 15,015,431,697.63
  5. Step 5: Solve for x
    x = 15,015,431,697.63/144,271.94
  6. Step 6: Final answer
    x = 104,077.28

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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.