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Finding the Fourth Proportional to 78,316.01, 108,074.48 and 44,323.88

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Solution

The fourth proportional to 78,316.01, 108,074.48 and 44,323.88 is: 61,166.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,316.01 : 108,074.48 = 44,323.88 : x
  2. Step 2: Convert to fraction form
    78,316.01/108,074.48 = 44,323.88/x
  3. Step 3: Cross multiply
    78,316.01x = 108,074.48 × 44,323.88
  4. Step 4: Simplify right side
    78,316.01x = 4,790,280,331.15
  5. Step 5: Solve for x
    x = 4,790,280,331.15/78,316.01
  6. Step 6: Final answer
    x = 61,166.05

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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.