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Finding the Fourth Proportional to 119,352.51, 164,704.30 and 65,637.67

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Solution

The fourth proportional to 119,352.51, 164,704.30 and 65,637.67 is: 90,578.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,352.51 : 164,704.30 = 65,637.67 : x
  2. Step 2: Convert to fraction form
    119,352.51/164,704.30 = 65,637.67/x
  3. Step 3: Cross multiply
    119,352.51x = 164,704.30 × 65,637.67
  4. Step 4: Simplify right side
    119,352.51x = 10,810,806,490.98
  5. Step 5: Solve for x
    x = 10,810,806,490.98/119,352.51
  6. Step 6: Final answer
    x = 90,578.79

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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.