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Finding the Fourth Proportional to 105,465.60, 158,173.44 and 30,565.92

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Solution

The fourth proportional to 105,465.60, 158,173.44 and 30,565.92 is: 45,841.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,465.60 : 158,173.44 = 30,565.92 : x
  2. Step 2: Convert to fraction form
    105,465.60/158,173.44 = 30,565.92/x
  3. Step 3: Cross multiply
    105,465.60x = 158,173.44 × 30,565.92
  4. Step 4: Simplify right side
    105,465.60x = 4,834,716,713.16
  5. Step 5: Solve for x
    x = 4,834,716,713.16/105,465.60
  6. Step 6: Final answer
    x = 45,841.65

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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.