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Finding the Fourth Proportional to 153,289.58, 211,543.72 and 92,847.38

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Solution

The fourth proportional to 153,289.58, 211,543.72 and 92,847.38 is: 128,131.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,289.58 : 211,543.72 = 92,847.38 : x
  2. Step 2: Convert to fraction form
    153,289.58/211,543.72 = 92,847.38/x
  3. Step 3: Cross multiply
    153,289.58x = 211,543.72 × 92,847.38
  4. Step 4: Simplify right side
    153,289.58x = 19,641,278,867.62
  5. Step 5: Solve for x
    x = 19,641,278,867.62/153,289.58
  6. Step 6: Final answer
    x = 128,131.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.