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Finding the Fourth Proportional to 105,014.60, 157,521.90 and 105,014.60

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Solution

The fourth proportional to 105,014.60, 157,521.90 and 105,014.60 is: 157,521.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,014.60 : 157,521.90 = 105,014.60 : x
  2. Step 2: Convert to fraction form
    105,014.60/157,521.90 = 105,014.60/x
  3. Step 3: Cross multiply
    105,014.60x = 157,521.90 × 105,014.60
  4. Step 4: Simplify right side
    105,014.60x = 16,542,099,319.74
  5. Step 5: Solve for x
    x = 16,542,099,319.74/105,014.60
  6. Step 6: Final answer
    x = 157,521.90

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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.