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Finding the Fourth Proportional to 86,482.86, 119,341.79 and 48,246.40

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Solution

The fourth proportional to 86,482.86, 119,341.79 and 48,246.40 is: 66,577.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,482.86 : 119,341.79 = 48,246.40 : x
  2. Step 2: Convert to fraction form
    86,482.86/119,341.79 = 48,246.40/x
  3. Step 3: Cross multiply
    86,482.86x = 119,341.79 × 48,246.40
  4. Step 4: Simplify right side
    86,482.86x = 5,757,811,495.82
  5. Step 5: Solve for x
    x = 5,757,811,495.82/86,482.86
  6. Step 6: Final answer
    x = 66,577.49

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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.