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Finding the Fourth Proportional to 190,373.53, 285,486.47 and 101,578.59

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Solution

The fourth proportional to 190,373.53, 285,486.47 and 101,578.59 is: 152,328.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,373.53 : 285,486.47 = 101,578.59 : x
  2. Step 2: Convert to fraction form
    190,373.53/285,486.47 = 101,578.59/x
  3. Step 3: Cross multiply
    190,373.53x = 285,486.47 × 101,578.59
  4. Step 4: Simplify right side
    190,373.53x = 28,999,313,086.68
  5. Step 5: Solve for x
    x = 28,999,313,086.68/190,373.53
  6. Step 6: Final answer
    x = 152,328.50

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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.