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Finding the Fourth Proportional to 157,385.40, 236,135.70 and 63,900.60

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Solution

The fourth proportional to 157,385.40, 236,135.70 and 63,900.60 is: 95,874.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,385.40 : 236,135.70 = 63,900.60 : x
  2. Step 2: Convert to fraction form
    157,385.40/236,135.70 = 63,900.60/x
  3. Step 3: Cross multiply
    157,385.40x = 236,135.70 × 63,900.60
  4. Step 4: Simplify right side
    157,385.40x = 15,089,212,911.42
  5. Step 5: Solve for x
    x = 15,089,212,911.42/157,385.40
  6. Step 6: Final answer
    x = 95,874.29

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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.