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Finding the Fourth Proportional to 108,602.80, 162,904.20 and 73,173.40

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Solution

The fourth proportional to 108,602.80, 162,904.20 and 73,173.40 is: 109,760.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,602.80 : 162,904.20 = 73,173.40 : x
  2. Step 2: Convert to fraction form
    108,602.80/162,904.20 = 73,173.40/x
  3. Step 3: Cross multiply
    108,602.80x = 162,904.20 × 73,173.40
  4. Step 4: Simplify right side
    108,602.80x = 11,920,254,188.28
  5. Step 5: Solve for x
    x = 11,920,254,188.28/108,602.80
  6. Step 6: Final answer
    x = 109,760.10

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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.