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Finding the Fourth Proportional to 157,768.40, 236,825.40 and 98,670.80

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Solution

The fourth proportional to 157,768.40, 236,825.40 and 98,670.80 is: 148,114.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,768.40 : 236,825.40 = 98,670.80 : x
  2. Step 2: Convert to fraction form
    157,768.40/236,825.40 = 98,670.80/x
  3. Step 3: Cross multiply
    157,768.40x = 236,825.40 × 98,670.80
  4. Step 4: Simplify right side
    157,768.40x = 23,367,751,678.32
  5. Step 5: Solve for x
    x = 23,367,751,678.32/157,768.40
  6. Step 6: Final answer
    x = 148,114.27

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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.