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Finding the Fourth Proportional to 113,889.75, 157,177.58 and 63,598.47

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Solution

The fourth proportional to 113,889.75, 157,177.58 and 63,598.47 is: 87,771.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,889.75 : 157,177.58 = 63,598.47 : x
  2. Step 2: Convert to fraction form
    113,889.75/157,177.58 = 63,598.47/x
  3. Step 3: Cross multiply
    113,889.75x = 157,177.58 × 63,598.47
  4. Step 4: Simplify right side
    113,889.75x = 9,996,253,606.30
  5. Step 5: Solve for x
    x = 9,996,253,606.30/113,889.75
  6. Step 6: Final answer
    x = 87,771.32

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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.