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Finding the Fourth Proportional to 86,192.67, 119,020.68 and 63,570.89

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Solution

The fourth proportional to 86,192.67, 119,020.68 and 63,570.89 is: 87,782.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,192.67 : 119,020.68 = 63,570.89 : x
  2. Step 2: Convert to fraction form
    86,192.67/119,020.68 = 63,570.89/x
  3. Step 3: Cross multiply
    86,192.67x = 119,020.68 × 63,570.89
  4. Step 4: Simplify right side
    86,192.67x = 7,566,249,960.90
  5. Step 5: Solve for x
    x = 7,566,249,960.90/86,192.67
  6. Step 6: Final answer
    x = 87,782.99

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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.