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Finding the Fourth Proportional to 86,482.76, 119,346.01 and 48,756.74

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Solution

The fourth proportional to 86,482.76, 119,346.01 and 48,756.74 is: 67,284.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,482.76 : 119,346.01 = 48,756.74 : x
  2. Step 2: Convert to fraction form
    86,482.76/119,346.01 = 48,756.74/x
  3. Step 3: Cross multiply
    86,482.76x = 119,346.01 × 48,756.74
  4. Step 4: Simplify right side
    86,482.76x = 5,818,921,660.99
  5. Step 5: Solve for x
    x = 5,818,921,660.99/86,482.76
  6. Step 6: Final answer
    x = 67,284.18

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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.