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Finding the Fourth Proportional to 262,145.10, 392,440.05 and 173,498.70

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Solution

The fourth proportional to 262,145.10, 392,440.05 and 173,498.70 is: 259,733.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,145.10 : 392,440.05 = 173,498.70 : x
  2. Step 2: Convert to fraction form
    262,145.10/392,440.05 = 173,498.70/x
  3. Step 3: Cross multiply
    262,145.10x = 392,440.05 × 173,498.70
  4. Step 4: Simplify right side
    262,145.10x = 68,087,838,502.94
  5. Step 5: Solve for x
    x = 68,087,838,502.94/262,145.10
  6. Step 6: Final answer
    x = 259,733.40

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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.