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Finding the Fourth Proportional to 104,641.50, 156,958.75 and 45,477.18

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Solution

The fourth proportional to 104,641.50, 156,958.75 and 45,477.18 is: 68,214.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,641.50 : 156,958.75 = 45,477.18 : x
  2. Step 2: Convert to fraction form
    104,641.50/156,958.75 = 45,477.18/x
  3. Step 3: Cross multiply
    104,641.50x = 156,958.75 × 45,477.18
  4. Step 4: Simplify right side
    104,641.50x = 7,138,041,326.33
  5. Step 5: Solve for x
    x = 7,138,041,326.33/104,641.50
  6. Step 6: Final answer
    x = 68,214.25

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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.