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Finding the Fourth Proportional to 111,513.60, 167,216.64 and 64,779.84

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Solution

The fourth proportional to 111,513.60, 167,216.64 and 64,779.84 is: 97,138.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,513.60 : 167,216.64 = 64,779.84 : x
  2. Step 2: Convert to fraction form
    111,513.60/167,216.64 = 64,779.84/x
  3. Step 3: Cross multiply
    111,513.60x = 167,216.64 × 64,779.84
  4. Step 4: Simplify right side
    111,513.60x = 10,832,267,184.54
  5. Step 5: Solve for x
    x = 10,832,267,184.54/111,513.60
  6. Step 6: Final answer
    x = 97,138.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.