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Finding the Fourth Proportional to 124,855.55, 172,300.65 and 68,266.92

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Solution

The fourth proportional to 124,855.55, 172,300.65 and 68,266.92 is: 94,208.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,855.55 : 172,300.65 = 68,266.92 : x
  2. Step 2: Convert to fraction form
    124,855.55/172,300.65 = 68,266.92/x
  3. Step 3: Cross multiply
    124,855.55x = 172,300.65 × 68,266.92
  4. Step 4: Simplify right side
    124,855.55x = 11,762,434,689.50
  5. Step 5: Solve for x
    x = 11,762,434,689.50/124,855.55
  6. Step 6: Final answer
    x = 94,208.34

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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.