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Finding the Fourth Proportional to 262,110.80, 392,548.98 and 173,143.64

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Solution

The fourth proportional to 262,110.80, 392,548.98 and 173,143.64 is: 259,307.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,110.80 : 392,548.98 = 173,143.64 : x
  2. Step 2: Convert to fraction form
    262,110.80/392,548.98 = 173,143.64/x
  3. Step 3: Cross multiply
    262,110.80x = 392,548.98 × 173,143.64
  4. Step 4: Simplify right side
    262,110.80x = 67,967,359,275.49
  5. Step 5: Solve for x
    x = 67,967,359,275.49/262,110.80
  6. Step 6: Final answer
    x = 259,307.74

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1.5x scale

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.