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Finding the Fourth Proportional to 157,771.40, 236,516.43 and 57,908.43

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Solution

The fourth proportional to 157,771.40, 236,516.43 and 57,908.43 is: 86,811.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,771.40 : 236,516.43 = 57,908.43 : x
  2. Step 2: Convert to fraction form
    157,771.40/236,516.43 = 57,908.43/x
  3. Step 3: Cross multiply
    157,771.40x = 236,516.43 × 57,908.43
  4. Step 4: Simplify right side
    157,771.40x = 13,696,295,130.50
  5. Step 5: Solve for x
    x = 13,696,295,130.50/157,771.40
  6. Step 6: Final answer
    x = 86,811.01

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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.