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Finding the Fourth Proportional to 152,335.99, 210,247.40 and 86,924.95

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Solution

The fourth proportional to 152,335.99, 210,247.40 and 86,924.95 is: 119,969.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,335.99 : 210,247.40 = 86,924.95 : x
  2. Step 2: Convert to fraction form
    152,335.99/210,247.40 = 86,924.95/x
  3. Step 3: Cross multiply
    152,335.99x = 210,247.40 × 86,924.95
  4. Step 4: Simplify right side
    152,335.99x = 18,275,743,935.37
  5. Step 5: Solve for x
    x = 18,275,743,935.37/152,335.99
  6. Step 6: Final answer
    x = 119,969.97

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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.