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Finding the Fourth Proportional to 190,248.99, 262,543.47 and 105,365.97

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Solution

The fourth proportional to 190,248.99, 262,543.47 and 105,365.97 is: 145,404.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,248.99 : 262,543.47 = 105,365.97 : x
  2. Step 2: Convert to fraction form
    190,248.99/262,543.47 = 105,365.97/x
  3. Step 3: Cross multiply
    190,248.99x = 262,543.47 × 105,365.97
  4. Step 4: Simplify right side
    190,248.99x = 27,663,147,383.72
  5. Step 5: Solve for x
    x = 27,663,147,383.72/190,248.99
  6. Step 6: Final answer
    x = 145,404.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.