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Finding the Fourth Proportional to 110,309.01, 165,128.93 and 99,783.46

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Solution

The fourth proportional to 110,309.01, 165,128.93 and 99,783.46 is: 149,372.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,309.01 : 165,128.93 = 99,783.46 : x
  2. Step 2: Convert to fraction form
    110,309.01/165,128.93 = 99,783.46/x
  3. Step 3: Cross multiply
    110,309.01x = 165,128.93 × 99,783.46
  4. Step 4: Simplify right side
    110,309.01x = 16,477,136,063.18
  5. Step 5: Solve for x
    x = 16,477,136,063.18/110,309.01
  6. Step 6: Final answer
    x = 149,372.54

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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.