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Finding the Fourth Proportional to 125,447.86, 173,112.14 and 68,085.89

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Solution

The fourth proportional to 125,447.86, 173,112.14 and 68,085.89 is: 93,955.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,447.86 : 173,112.14 = 68,085.89 : x
  2. Step 2: Convert to fraction form
    125,447.86/173,112.14 = 68,085.89/x
  3. Step 3: Cross multiply
    125,447.86x = 173,112.14 × 68,085.89
  4. Step 4: Simplify right side
    125,447.86x = 11,786,492,915.71
  5. Step 5: Solve for x
    x = 11,786,492,915.71/125,447.86
  6. Step 6: Final answer
    x = 93,955.32

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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.