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Finding the Fourth Proportional to 190,010.60, 285,015.90 and 49,783.40

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Solution

The fourth proportional to 190,010.60, 285,015.90 and 49,783.40 is: 74,675.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,010.60 : 285,015.90 = 49,783.40 : x
  2. Step 2: Convert to fraction form
    190,010.60/285,015.90 = 49,783.40/x
  3. Step 3: Cross multiply
    190,010.60x = 285,015.90 × 49,783.40
  4. Step 4: Simplify right side
    190,010.60x = 14,189,060,556.06
  5. Step 5: Solve for x
    x = 14,189,060,556.06/190,010.60
  6. Step 6: Final answer
    x = 74,675.10

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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.