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Finding the Fourth Proportional to 69,460.86, 104,178.84 and 19,528.98

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Solution

The fourth proportional to 69,460.86, 104,178.84 and 19,528.98 is: 29,289.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,460.86 : 104,178.84 = 19,528.98 : x
  2. Step 2: Convert to fraction form
    69,460.86/104,178.84 = 19,528.98/x
  3. Step 3: Cross multiply
    69,460.86x = 104,178.84 × 19,528.98
  4. Step 4: Simplify right side
    69,460.86x = 2,034,506,482.78
  5. Step 5: Solve for x
    x = 2,034,506,482.78/69,460.86
  6. Step 6: Final answer
    x = 29,289.97

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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.