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Finding the Fourth Proportional to 108,677.70, 163,016.55 and 55,533.60

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Solution

The fourth proportional to 108,677.70, 163,016.55 and 55,533.60 is: 83,300.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,677.70 : 163,016.55 = 55,533.60 : x
  2. Step 2: Convert to fraction form
    108,677.70/163,016.55 = 55,533.60/x
  3. Step 3: Cross multiply
    108,677.70x = 163,016.55 × 55,533.60
  4. Step 4: Simplify right side
    108,677.70x = 9,052,895,881.08
  5. Step 5: Solve for x
    x = 9,052,895,881.08/108,677.70
  6. Step 6: Final answer
    x = 83,300.40

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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.