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Finding the Fourth Proportional to 114,297.60, 157,728.96 and 63,998.40

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Solution

The fourth proportional to 114,297.60, 157,728.96 and 63,998.40 is: 88,316.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,297.60 : 157,728.96 = 63,998.40 : x
  2. Step 2: Convert to fraction form
    114,297.60/157,728.96 = 63,998.40/x
  3. Step 3: Cross multiply
    114,297.60x = 157,728.96 × 63,998.40
  4. Step 4: Simplify right side
    114,297.60x = 10,094,401,073.66
  5. Step 5: Solve for x
    x = 10,094,401,073.66/114,297.60
  6. Step 6: Final answer
    x = 88,316.82

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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.