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Finding the Fourth Proportional to 96,090.30, 143,746.65 and 84,426.30

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Solution

The fourth proportional to 96,090.30, 143,746.65 and 84,426.30 is: 126,297.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,090.30 : 143,746.65 = 84,426.30 : x
  2. Step 2: Convert to fraction form
    96,090.30/143,746.65 = 84,426.30/x
  3. Step 3: Cross multiply
    96,090.30x = 143,746.65 × 84,426.30
  4. Step 4: Simplify right side
    96,090.30x = 12,135,997,796.90
  5. Step 5: Solve for x
    x = 12,135,997,796.90/96,090.30
  6. Step 6: Final answer
    x = 126,297.84

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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.