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Finding the Fourth Proportional to 86,866.96, 119,855.73 and 52,875.08

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Solution

The fourth proportional to 86,866.96, 119,855.73 and 52,875.08 is: 72,955.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,866.96 : 119,855.73 = 52,875.08 : x
  2. Step 2: Convert to fraction form
    86,866.96/119,855.73 = 52,875.08/x
  3. Step 3: Cross multiply
    86,866.96x = 119,855.73 × 52,875.08
  4. Step 4: Simplify right side
    86,866.96x = 6,337,381,312.21
  5. Step 5: Solve for x
    x = 6,337,381,312.21/86,866.96
  6. Step 6: Final answer
    x = 72,955.03

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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.