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Finding the Fourth Proportional to 141,762.60, 212,643.90 and 41,913.90

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Solution

The fourth proportional to 141,762.60, 212,643.90 and 41,913.90 is: 62,870.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,762.60 : 212,643.90 = 41,913.90 : x
  2. Step 2: Convert to fraction form
    141,762.60/212,643.90 = 41,913.90/x
  3. Step 3: Cross multiply
    141,762.60x = 212,643.90 × 41,913.90
  4. Step 4: Simplify right side
    141,762.60x = 8,912,735,160.21
  5. Step 5: Solve for x
    x = 8,912,735,160.21/141,762.60
  6. Step 6: Final answer
    x = 62,870.85

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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.