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Finding the Fourth Proportional to 90,641.44, 135,948.12 and 46,300.96

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Solution

The fourth proportional to 90,641.44, 135,948.12 and 46,300.96 is: 69,444.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,641.44 : 135,948.12 = 46,300.96 : x
  2. Step 2: Convert to fraction form
    90,641.44/135,948.12 = 46,300.96/x
  3. Step 3: Cross multiply
    90,641.44x = 135,948.12 × 46,300.96
  4. Step 4: Simplify right side
    90,641.44x = 6,294,528,466.20
  5. Step 5: Solve for x
    x = 6,294,528,466.20/90,641.44
  6. Step 6: Final answer
    x = 69,444.27

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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.