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Finding the Fourth Proportional to 84,858.60, 117,091.85 and 49,041.69

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Solution

The fourth proportional to 84,858.60, 117,091.85 and 49,041.69 is: 67,670.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,858.60 : 117,091.85 = 49,041.69 : x
  2. Step 2: Convert to fraction form
    84,858.60/117,091.85 = 49,041.69/x
  3. Step 3: Cross multiply
    84,858.60x = 117,091.85 × 49,041.69
  4. Step 4: Simplify right side
    84,858.60x = 5,742,382,321.50
  5. Step 5: Solve for x
    x = 5,742,382,321.50/84,858.60
  6. Step 6: Final answer
    x = 67,670.01

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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.