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Finding the Fourth Proportional to 151,060.20, 208,465.50 and 83,080.20

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Solution

The fourth proportional to 151,060.20, 208,465.50 and 83,080.20 is: 114,652.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,060.20 : 208,465.50 = 83,080.20 : x
  2. Step 2: Convert to fraction form
    151,060.20/208,465.50 = 83,080.20/x
  3. Step 3: Cross multiply
    151,060.20x = 208,465.50 × 83,080.20
  4. Step 4: Simplify right side
    151,060.20x = 17,319,355,433.10
  5. Step 5: Solve for x
    x = 17,319,355,433.10/151,060.20
  6. Step 6: Final answer
    x = 114,652.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.