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Finding the Fourth Proportional to 146,788.80, 202,567.39 and 79,720.80

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Solution

The fourth proportional to 146,788.80, 202,567.39 and 79,720.80 is: 110,014.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,788.80 : 202,567.39 = 79,720.80 : x
  2. Step 2: Convert to fraction form
    146,788.80/202,567.39 = 79,720.80/x
  3. Step 3: Cross multiply
    146,788.80x = 202,567.39 × 79,720.80
  4. Step 4: Simplify right side
    146,788.80x = 16,148,834,384.71
  5. Step 5: Solve for x
    x = 16,148,834,384.71/146,788.80
  6. Step 6: Final answer
    x = 110,014.08

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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.