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Finding the Fourth Proportional to 111,779.02, 154,242.11 and 64,029.52

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Solution

The fourth proportional to 111,779.02, 154,242.11 and 64,029.52 is: 88,353.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,779.02 : 154,242.11 = 64,029.52 : x
  2. Step 2: Convert to fraction form
    111,779.02/154,242.11 = 64,029.52/x
  3. Step 3: Cross multiply
    111,779.02x = 154,242.11 × 64,029.52
  4. Step 4: Simplify right side
    111,779.02x = 9,876,048,267.09
  5. Step 5: Solve for x
    x = 9,876,048,267.09/111,779.02
  6. Step 6: Final answer
    x = 88,353.33

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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.