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Finding the Fourth Proportional to 79,307.20, 118,966.20 and 25,267.60

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Solution

The fourth proportional to 79,307.20, 118,966.20 and 25,267.60 is: 37,903.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,307.20 : 118,966.20 = 25,267.60 : x
  2. Step 2: Convert to fraction form
    79,307.20/118,966.20 = 25,267.60/x
  3. Step 3: Cross multiply
    79,307.20x = 118,966.20 × 25,267.60
  4. Step 4: Simplify right side
    79,307.20x = 3,005,990,355.12
  5. Step 5: Solve for x
    x = 3,005,990,355.12/79,307.20
  6. Step 6: Final answer
    x = 37,903.12

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1.5x scale

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.