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Finding the Fourth Proportional to 86,482.58, 119,345.75 and 48,756.56

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Solution

The fourth proportional to 86,482.58, 119,345.75 and 48,756.56 is: 67,283.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,482.58 : 119,345.75 = 48,756.56 : x
  2. Step 2: Convert to fraction form
    86,482.58/119,345.75 = 48,756.56/x
  3. Step 3: Cross multiply
    86,482.58x = 119,345.75 × 48,756.56
  4. Step 4: Simplify right side
    86,482.58x = 5,818,887,380.11
  5. Step 5: Solve for x
    x = 5,818,887,380.11/86,482.58
  6. Step 6: Final answer
    x = 67,283.93

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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.