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Finding the Fourth Proportional to 86,271.60, 119,054.76 and 48,545.88

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Solution

The fourth proportional to 86,271.60, 119,054.76 and 48,545.88 is: 66,993.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,271.60 : 119,054.76 = 48,545.88 : x
  2. Step 2: Convert to fraction form
    86,271.60/119,054.76 = 48,545.88/x
  3. Step 3: Cross multiply
    86,271.60x = 119,054.76 × 48,545.88
  4. Step 4: Simplify right side
    86,271.60x = 5,779,618,092.39
  5. Step 5: Solve for x
    x = 5,779,618,092.39/86,271.60
  6. Step 6: Final answer
    x = 66,993.29

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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.