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Finding the Fourth Proportional to 113,911.52, 157,200.32 and 63,610.48

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Solution

The fourth proportional to 113,911.52, 157,200.32 and 63,610.48 is: 87,783.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,911.52 : 157,200.32 = 63,610.48 : x
  2. Step 2: Convert to fraction form
    113,911.52/157,200.32 = 63,610.48/x
  3. Step 3: Cross multiply
    113,911.52x = 157,200.32 × 63,610.48
  4. Step 4: Simplify right side
    113,911.52x = 9,999,587,811.35
  5. Step 5: Solve for x
    x = 9,999,587,811.35/113,911.52
  6. Step 6: Final answer
    x = 87,783.82

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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.