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Finding the Fourth Proportional to 124,855.54, 172,301.30 and 68,266.91

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Solution

The fourth proportional to 124,855.54, 172,301.30 and 68,266.91 is: 94,208.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,855.54 : 172,301.30 = 68,266.91 : x
  2. Step 2: Convert to fraction form
    124,855.54/172,301.30 = 68,266.91/x
  3. Step 3: Cross multiply
    124,855.54x = 172,301.30 × 68,266.91
  4. Step 4: Simplify right side
    124,855.54x = 11,762,477,510.65
  5. Step 5: Solve for x
    x = 11,762,477,510.65/124,855.54
  6. Step 6: Final answer
    x = 94,208.70

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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.