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Finding the Fourth Proportional to 190,659.65, 285,996.90 and 57,539.93

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Solution

The fourth proportional to 190,659.65, 285,996.90 and 57,539.93 is: 86,312.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,659.65 : 285,996.90 = 57,539.93 : x
  2. Step 2: Convert to fraction form
    190,659.65/285,996.90 = 57,539.93/x
  3. Step 3: Cross multiply
    190,659.65x = 285,996.90 × 57,539.93
  4. Step 4: Simplify right side
    190,659.65x = 16,456,241,606.22
  5. Step 5: Solve for x
    x = 16,456,241,606.22/190,659.65
  6. Step 6: Final answer
    x = 86,312.14

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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.