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Finding the Fourth Proportional to 86,502.51, 119,373.48 and 48,776.76

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Solution

The fourth proportional to 86,502.51, 119,373.48 and 48,776.76 is: 67,311.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,502.51 : 119,373.48 = 48,776.76 : x
  2. Step 2: Convert to fraction form
    86,502.51/119,373.48 = 48,776.76/x
  3. Step 3: Cross multiply
    86,502.51x = 119,373.48 × 48,776.76
  4. Step 4: Simplify right side
    86,502.51x = 5,822,651,584.32
  5. Step 5: Solve for x
    x = 5,822,651,584.32/86,502.51
  6. Step 6: Final answer
    x = 67,311.94

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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.