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Finding the Fourth Proportional to 108,998.40, 163,281.60 and 96,009.60

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Solution

The fourth proportional to 108,998.40, 163,281.60 and 96,009.60 is: 143,824.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,998.40 : 163,281.60 = 96,009.60 : x
  2. Step 2: Convert to fraction form
    108,998.40/163,281.60 = 96,009.60/x
  3. Step 3: Cross multiply
    108,998.40x = 163,281.60 × 96,009.60
  4. Step 4: Simplify right side
    108,998.40x = 15,676,601,103.36
  5. Step 5: Solve for x
    x = 15,676,601,103.36/108,998.40
  6. Step 6: Final answer
    x = 143,824.14

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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.