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Finding the Fourth Proportional to 190,403.64, 285,531.63 and 101,608.71

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Solution

The fourth proportional to 190,403.64, 285,531.63 and 101,608.71 is: 152,373.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,403.64 : 285,531.63 = 101,608.71 : x
  2. Step 2: Convert to fraction form
    190,403.64/285,531.63 = 101,608.71/x
  3. Step 3: Cross multiply
    190,403.64x = 285,531.63 × 101,608.71
  4. Step 4: Simplify right side
    190,403.64x = 29,012,500,588.50
  5. Step 5: Solve for x
    x = 29,012,500,588.50/190,403.64
  6. Step 6: Final answer
    x = 152,373.67

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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.