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Finding the Fourth Proportional to 104,666.72, 157,000.12 and 25,782.48

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Solution

The fourth proportional to 104,666.72, 157,000.12 and 25,782.48 is: 38,673.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,666.72 : 157,000.12 = 25,782.48 : x
  2. Step 2: Convert to fraction form
    104,666.72/157,000.12 = 25,782.48/x
  3. Step 3: Cross multiply
    104,666.72x = 157,000.12 × 25,782.48
  4. Step 4: Simplify right side
    104,666.72x = 4,047,852,453.90
  5. Step 5: Solve for x
    x = 4,047,852,453.90/104,666.72
  6. Step 6: Final answer
    x = 38,673.73

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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.