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Finding the Fourth Proportional to 108,664.40, 162,996.60 and 52,547.60

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Solution

The fourth proportional to 108,664.40, 162,996.60 and 52,547.60 is: 78,821.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,664.40 : 162,996.60 = 52,547.60 : x
  2. Step 2: Convert to fraction form
    108,664.40/162,996.60 = 52,547.60/x
  3. Step 3: Cross multiply
    108,664.40x = 162,996.60 × 52,547.60
  4. Step 4: Simplify right side
    108,664.40x = 8,565,080,138.16
  5. Step 5: Solve for x
    x = 8,565,080,138.16/108,664.40
  6. Step 6: Final answer
    x = 78,821.40

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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.