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Finding the Fourth Proportional to 75,230.55, 103,790.70 and 45,016.74

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Solution

The fourth proportional to 75,230.55, 103,790.70 and 45,016.74 is: 62,106.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,230.55 : 103,790.70 = 45,016.74 : x
  2. Step 2: Convert to fraction form
    75,230.55/103,790.70 = 45,016.74/x
  3. Step 3: Cross multiply
    75,230.55x = 103,790.70 × 45,016.74
  4. Step 4: Simplify right side
    75,230.55x = 4,672,318,956.32
  5. Step 5: Solve for x
    x = 4,672,318,956.32/75,230.55
  6. Step 6: Final answer
    x = 62,106.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.