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Finding the Fourth Proportional to 107,925.70, 161,888.55 and 103,260.10

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Solution

The fourth proportional to 107,925.70, 161,888.55 and 103,260.10 is: 154,890.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,925.70 : 161,888.55 = 103,260.10 : x
  2. Step 2: Convert to fraction form
    107,925.70/161,888.55 = 103,260.10/x
  3. Step 3: Cross multiply
    107,925.70x = 161,888.55 × 103,260.10
  4. Step 4: Simplify right side
    107,925.70x = 16,716,627,861.86
  5. Step 5: Solve for x
    x = 16,716,627,861.86/107,925.70
  6. Step 6: Final answer
    x = 154,890.15

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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.