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Finding the Fourth Proportional to 130,134.40, 195,230.40 and 59,996.80

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Solution

The fourth proportional to 130,134.40, 195,230.40 and 59,996.80 is: 90,008.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,134.40 : 195,230.40 = 59,996.80 : x
  2. Step 2: Convert to fraction form
    130,134.40/195,230.40 = 59,996.80/x
  3. Step 3: Cross multiply
    130,134.40x = 195,230.40 × 59,996.80
  4. Step 4: Simplify right side
    130,134.40x = 11,713,199,262.72
  5. Step 5: Solve for x
    x = 11,713,199,262.72/130,134.40
  6. Step 6: Final answer
    x = 90,008.48

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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.