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Finding the Fourth Proportional to 70,645.77, 105,511.37 and 63,968.93

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Solution

The fourth proportional to 70,645.77, 105,511.37 and 63,968.93 is: 95,539.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,645.77 : 105,511.37 = 63,968.93 : x
  2. Step 2: Convert to fraction form
    70,645.77/105,511.37 = 63,968.93/x
  3. Step 3: Cross multiply
    70,645.77x = 105,511.37 × 63,968.93
  4. Step 4: Simplify right side
    70,645.77x = 6,749,449,074.10
  5. Step 5: Solve for x
    x = 6,749,449,074.10/70,645.77
  6. Step 6: Final answer
    x = 95,539.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.