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Finding the Fourth Proportional to 107,735.19, 161,602.80 and 28,847.40

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Solution

The fourth proportional to 107,735.19, 161,602.80 and 28,847.40 is: 43,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,735.19 : 161,602.80 = 28,847.40 : x
  2. Step 2: Convert to fraction form
    107,735.19/161,602.80 = 28,847.40/x
  3. Step 3: Cross multiply
    107,735.19x = 161,602.80 × 28,847.40
  4. Step 4: Simplify right side
    107,735.19x = 4,661,820,612.72
  5. Step 5: Solve for x
    x = 4,661,820,612.72/107,735.19
  6. Step 6: Final answer
    x = 43,271.10

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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.