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Finding the Fourth Proportional to 125,570.46, 173,287.35 and 68,985.50

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Solution

The fourth proportional to 125,570.46, 173,287.35 and 68,985.50 is: 95,200.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,570.46 : 173,287.35 = 68,985.50 : x
  2. Step 2: Convert to fraction form
    125,570.46/173,287.35 = 68,985.50/x
  3. Step 3: Cross multiply
    125,570.46x = 173,287.35 × 68,985.50
  4. Step 4: Simplify right side
    125,570.46x = 11,954,314,483.43
  5. Step 5: Solve for x
    x = 11,954,314,483.43/125,570.46
  6. Step 6: Final answer
    x = 95,200.05

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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.