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Finding the Fourth Proportional to 125,083.30, 172,615.02 and 68,494.67

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Solution

The fourth proportional to 125,083.30, 172,615.02 and 68,494.67 is: 94,522.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,083.30 : 172,615.02 = 68,494.67 : x
  2. Step 2: Convert to fraction form
    125,083.30/172,615.02 = 68,494.67/x
  3. Step 3: Cross multiply
    125,083.30x = 172,615.02 × 68,494.67
  4. Step 4: Simplify right side
    125,083.30x = 11,823,208,831.94
  5. Step 5: Solve for x
    x = 11,823,208,831.94/125,083.30
  6. Step 6: Final answer
    x = 94,522.68

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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.