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Finding the Fourth Proportional to 157,093.30, 235,639.95 and 115,266.93

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Solution

The fourth proportional to 157,093.30, 235,639.95 and 115,266.93 is: 172,900.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,093.30 : 235,639.95 = 115,266.93 : x
  2. Step 2: Convert to fraction form
    157,093.30/235,639.95 = 115,266.93/x
  3. Step 3: Cross multiply
    157,093.30x = 235,639.95 × 115,266.93
  4. Step 4: Simplify right side
    157,093.30x = 27,161,493,621.85
  5. Step 5: Solve for x
    x = 27,161,493,621.85/157,093.30
  6. Step 6: Final answer
    x = 172,900.40

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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.