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Finding the Fourth Proportional to 190,271.70, 285,407.55 and 116,543.70

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Solution

The fourth proportional to 190,271.70, 285,407.55 and 116,543.70 is: 174,815.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,271.70 : 285,407.55 = 116,543.70 : x
  2. Step 2: Convert to fraction form
    190,271.70/285,407.55 = 116,543.70/x
  3. Step 3: Cross multiply
    190,271.70x = 285,407.55 × 116,543.70
  4. Step 4: Simplify right side
    190,271.70x = 33,262,451,884.94
  5. Step 5: Solve for x
    x = 33,262,451,884.94/190,271.70
  6. Step 6: Final answer
    x = 174,815.55

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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.