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Finding the Fourth Proportional to 109,779.46, 151,495.66 and 59,478.46

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Solution

The fourth proportional to 109,779.46, 151,495.66 and 59,478.46 is: 82,080.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,779.46 : 151,495.66 = 59,478.46 : x
  2. Step 2: Convert to fraction form
    109,779.46/151,495.66 = 59,478.46/x
  3. Step 3: Cross multiply
    109,779.46x = 151,495.66 × 59,478.46
  4. Step 4: Simplify right side
    109,779.46x = 9,010,727,796.01
  5. Step 5: Solve for x
    x = 9,010,727,796.01/109,779.46
  6. Step 6: Final answer
    x = 82,080.27

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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.