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Finding the Fourth Proportional to 86,955.80, 130,482.30 and 37,027.40

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Solution

The fourth proportional to 86,955.80, 130,482.30 and 37,027.40 is: 55,561.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,955.80 : 130,482.30 = 37,027.40 : x
  2. Step 2: Convert to fraction form
    86,955.80/130,482.30 = 37,027.40/x
  3. Step 3: Cross multiply
    86,955.80x = 130,482.30 × 37,027.40
  4. Step 4: Simplify right side
    86,955.80x = 4,831,420,315.02
  5. Step 5: Solve for x
    x = 4,831,420,315.02/86,955.80
  6. Step 6: Final answer
    x = 55,561.79

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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.