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Finding the Fourth Proportional to 107,405.69, 160,863.12 and 51,285.10

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Solution

The fourth proportional to 107,405.69, 160,863.12 and 51,285.10 is: 76,810.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,405.69 : 160,863.12 = 51,285.10 : x
  2. Step 2: Convert to fraction form
    107,405.69/160,863.12 = 51,285.10/x
  3. Step 3: Cross multiply
    107,405.69x = 160,863.12 × 51,285.10
  4. Step 4: Simplify right side
    107,405.69x = 8,249,881,597.67
  5. Step 5: Solve for x
    x = 8,249,881,597.67/107,405.69
  6. Step 6: Final answer
    x = 76,810.47

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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.