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Finding the Fourth Proportional to 177,649.10, 245,152.80 and 97,074.86

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Solution

The fourth proportional to 177,649.10, 245,152.80 and 97,074.86 is: 133,961.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,649.10 : 245,152.80 = 97,074.86 : x
  2. Step 2: Convert to fraction form
    177,649.10/245,152.80 = 97,074.86/x
  3. Step 3: Cross multiply
    177,649.10x = 245,152.80 × 97,074.86
  4. Step 4: Simplify right side
    177,649.10x = 23,798,173,738.61
  5. Step 5: Solve for x
    x = 23,798,173,738.61/177,649.10
  6. Step 6: Final answer
    x = 133,961.69

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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.