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Finding the Fourth Proportional to 301,870.80, 452,806.20 and 91,508.67

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Solution

The fourth proportional to 301,870.80, 452,806.20 and 91,508.67 is: 137,263.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,870.80 : 452,806.20 = 91,508.67 : x
  2. Step 2: Convert to fraction form
    301,870.80/452,806.20 = 91,508.67/x
  3. Step 3: Cross multiply
    301,870.80x = 452,806.20 × 91,508.67
  4. Step 4: Simplify right side
    301,870.80x = 41,435,693,129.75
  5. Step 5: Solve for x
    x = 41,435,693,129.75/301,870.80
  6. Step 6: Final answer
    x = 137,263.01

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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.