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Finding the Fourth Proportional to 157,602.60, 236,403.90 and 74,658.60

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Solution

The fourth proportional to 157,602.60, 236,403.90 and 74,658.60 is: 111,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,602.60 : 236,403.90 = 74,658.60 : x
  2. Step 2: Convert to fraction form
    157,602.60/236,403.90 = 74,658.60/x
  3. Step 3: Cross multiply
    157,602.60x = 236,403.90 × 74,658.60
  4. Step 4: Simplify right side
    157,602.60x = 17,649,584,208.54
  5. Step 5: Solve for x
    x = 17,649,584,208.54/157,602.60
  6. Step 6: Final answer
    x = 111,987.90

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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.