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Finding the Fourth Proportional to 175,017.99, 262,540.80 and 86,223.06

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Solution

The fourth proportional to 175,017.99, 262,540.80 and 86,223.06 is: 129,341.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,017.99 : 262,540.80 = 86,223.06 : x
  2. Step 2: Convert to fraction form
    175,017.99/262,540.80 = 86,223.06/x
  3. Step 3: Cross multiply
    175,017.99x = 262,540.80 × 86,223.06
  4. Step 4: Simplify right side
    175,017.99x = 22,637,071,150.85
  5. Step 5: Solve for x
    x = 22,637,071,150.85/175,017.99
  6. Step 6: Final answer
    x = 129,341.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.