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Finding the Fourth Proportional to 107,130.64, 160,486.80 and 50,890.72

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Solution

The fourth proportional to 107,130.64, 160,486.80 and 50,890.72 is: 76,236.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,130.64 : 160,486.80 = 50,890.72 : x
  2. Step 2: Convert to fraction form
    107,130.64/160,486.80 = 50,890.72/x
  3. Step 3: Cross multiply
    107,130.64x = 160,486.80 × 50,890.72
  4. Step 4: Simplify right side
    107,130.64x = 8,167,288,802.50
  5. Step 5: Solve for x
    x = 8,167,288,802.50/107,130.64
  6. Step 6: Final answer
    x = 76,236.72

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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.