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Finding the Fourth Proportional to 86,416.72, 119,262 and 48,188.76

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Solution

The fourth proportional to 86,416.72, 119,262 and 48,188.76 is: 66,504.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,416.72 : 119,262 = 48,188.76 : x
  2. Step 2: Convert to fraction form
    86,416.72/119,262 = 48,188.76/x
  3. Step 3: Cross multiply
    86,416.72x = 119,262 × 48,188.76
  4. Step 4: Simplify right side
    86,416.72x = 5,747,087,895.12
  5. Step 5: Solve for x
    x = 5,747,087,895.12/86,416.72
  6. Step 6: Final answer
    x = 66,504.35

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1.5x scale

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.