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Finding the Fourth Proportional to 190,598.50, 285,889.50 and 64,230.40

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Solution

The fourth proportional to 190,598.50, 285,889.50 and 64,230.40 is: 96,342.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,598.50 : 285,889.50 = 64,230.40 : x
  2. Step 2: Convert to fraction form
    190,598.50/285,889.50 = 64,230.40/x
  3. Step 3: Cross multiply
    190,598.50x = 285,889.50 × 64,230.40
  4. Step 4: Simplify right side
    190,598.50x = 18,362,796,940.80
  5. Step 5: Solve for x
    x = 18,362,796,940.80/190,598.50
  6. Step 6: Final answer
    x = 96,342.82

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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.