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Finding the Fourth Proportional to 73,225.80, 109,838.70 and 60,978.60

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Solution

The fourth proportional to 73,225.80, 109,838.70 and 60,978.60 is: 91,467.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,225.80 : 109,838.70 = 60,978.60 : x
  2. Step 2: Convert to fraction form
    73,225.80/109,838.70 = 60,978.60/x
  3. Step 3: Cross multiply
    73,225.80x = 109,838.70 × 60,978.60
  4. Step 4: Simplify right side
    73,225.80x = 6,697,810,151.82
  5. Step 5: Solve for x
    x = 6,697,810,151.82/73,225.80
  6. Step 6: Final answer
    x = 91,467.90

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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.