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Finding the Fourth Proportional to 116,602.20, 174,903.30 and 42,720.60

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Solution

The fourth proportional to 116,602.20, 174,903.30 and 42,720.60 is: 64,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,602.20 : 174,903.30 = 42,720.60 : x
  2. Step 2: Convert to fraction form
    116,602.20/174,903.30 = 42,720.60/x
  3. Step 3: Cross multiply
    116,602.20x = 174,903.30 × 42,720.60
  4. Step 4: Simplify right side
    116,602.20x = 7,471,973,917.98
  5. Step 5: Solve for x
    x = 7,471,973,917.98/116,602.20
  6. Step 6: Final answer
    x = 64,080.90

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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.