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Finding the Fourth Proportional to 161,089.64, 241,541.86 and 66,385.19

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Solution

The fourth proportional to 161,089.64, 241,541.86 and 66,385.19 is: 99,539.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,089.64 : 241,541.86 = 66,385.19 : x
  2. Step 2: Convert to fraction form
    161,089.64/241,541.86 = 66,385.19/x
  3. Step 3: Cross multiply
    161,089.64x = 241,541.86 × 66,385.19
  4. Step 4: Simplify right side
    161,089.64x = 16,034,802,706.95
  5. Step 5: Solve for x
    x = 16,034,802,706.95/161,089.64
  6. Step 6: Final answer
    x = 99,539.63

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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.