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Finding the Fourth Proportional to 130,199.06, 179,675.79 and 70,583.06

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Solution

The fourth proportional to 130,199.06, 179,675.79 and 70,583.06 is: 97,405.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,199.06 : 179,675.79 = 70,583.06 : x
  2. Step 2: Convert to fraction form
    130,199.06/179,675.79 = 70,583.06/x
  3. Step 3: Cross multiply
    130,199.06x = 179,675.79 × 70,583.06
  4. Step 4: Simplify right side
    130,199.06x = 12,682,067,250.62
  5. Step 5: Solve for x
    x = 12,682,067,250.62/130,199.06
  6. Step 6: Final answer
    x = 97,405.21

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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.