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Finding the Fourth Proportional to 107,157.12, 160,719.88 and 28,276.89

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Solution

The fourth proportional to 107,157.12, 160,719.88 and 28,276.89 is: 42,411.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,157.12 : 160,719.88 = 28,276.89 : x
  2. Step 2: Convert to fraction form
    107,157.12/160,719.88 = 28,276.89/x
  3. Step 3: Cross multiply
    107,157.12x = 160,719.88 × 28,276.89
  4. Step 4: Simplify right side
    107,157.12x = 4,544,658,367.57
  5. Step 5: Solve for x
    x = 4,544,658,367.57/107,157.12
  6. Step 6: Final answer
    x = 42,411.17

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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.