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Finding the Fourth Proportional to 190,384.80, 285,580.80 and 64,001.68

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Solution

The fourth proportional to 190,384.80, 285,580.80 and 64,001.68 is: 96,003.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,384.80 : 285,580.80 = 64,001.68 : x
  2. Step 2: Convert to fraction form
    190,384.80/285,580.80 = 64,001.68/x
  3. Step 3: Cross multiply
    190,384.80x = 285,580.80 × 64,001.68
  4. Step 4: Simplify right side
    190,384.80x = 18,277,650,975.74
  5. Step 5: Solve for x
    x = 18,277,650,975.74/190,384.80
  6. Step 6: Final answer
    x = 96,003.73

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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.