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Finding the Fourth Proportional to 157,911.40, 236,607.90 and 134,583.40

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Solution

The fourth proportional to 157,911.40, 236,607.90 and 134,583.40 is: 201,654.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,911.40 : 236,607.90 = 134,583.40 : x
  2. Step 2: Convert to fraction form
    157,911.40/236,607.90 = 134,583.40/x
  3. Step 3: Cross multiply
    157,911.40x = 236,607.90 × 134,583.40
  4. Step 4: Simplify right side
    157,911.40x = 31,843,495,648.86
  5. Step 5: Solve for x
    x = 31,843,495,648.86/157,911.40
  6. Step 6: Final answer
    x = 201,654.19

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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.