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Finding the Fourth Proportional to 88,263.96, 121,805.44 and 47,978.34

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Solution

The fourth proportional to 88,263.96, 121,805.44 and 47,978.34 is: 66,210.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,263.96 : 121,805.44 = 47,978.34 : x
  2. Step 2: Convert to fraction form
    88,263.96/121,805.44 = 47,978.34/x
  3. Step 3: Cross multiply
    88,263.96x = 121,805.44 × 47,978.34
  4. Step 4: Simplify right side
    88,263.96x = 5,844,022,814.17
  5. Step 5: Solve for x
    x = 5,844,022,814.17/88,263.96
  6. Step 6: Final answer
    x = 66,210.75

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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.