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Finding the Fourth Proportional to 69,598.83, 104,328.17 and 40,007.79

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Solution

The fourth proportional to 69,598.83, 104,328.17 and 40,007.79 is: 59,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,598.83 : 104,328.17 = 40,007.79 : x
  2. Step 2: Convert to fraction form
    69,598.83/104,328.17 = 40,007.79/x
  3. Step 3: Cross multiply
    69,598.83x = 104,328.17 × 40,007.79
  4. Step 4: Simplify right side
    69,598.83x = 4,173,939,316.41
  5. Step 5: Solve for x
    x = 4,173,939,316.41/69,598.83
  6. Step 6: Final answer
    x = 59,971.40

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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.