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Finding the Fourth Proportional to 243,340.86, 365,011.33 and 91,566.51

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Solution

The fourth proportional to 243,340.86, 365,011.33 and 91,566.51 is: 137,349.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,340.86 : 365,011.33 = 91,566.51 : x
  2. Step 2: Convert to fraction form
    243,340.86/365,011.33 = 91,566.51/x
  3. Step 3: Cross multiply
    243,340.86x = 365,011.33 × 91,566.51
  4. Step 4: Simplify right side
    243,340.86x = 33,422,813,598.56
  5. Step 5: Solve for x
    x = 33,422,813,598.56/243,340.86
  6. Step 6: Final answer
    x = 137,349.78

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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.