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Finding the Fourth Proportional to 86,482.98, 129,759.03 and 46,993.86

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Solution

The fourth proportional to 86,482.98, 129,759.03 and 46,993.86 is: 70,509.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,482.98 : 129,759.03 = 46,993.86 : x
  2. Step 2: Convert to fraction form
    86,482.98/129,759.03 = 46,993.86/x
  3. Step 3: Cross multiply
    86,482.98x = 129,759.03 × 46,993.86
  4. Step 4: Simplify right side
    86,482.98x = 6,097,877,689.56
  5. Step 5: Solve for x
    x = 6,097,877,689.56/86,482.98
  6. Step 6: Final answer
    x = 70,509.57

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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.