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Finding the Fourth Proportional to 52,440.60, 78,660.90 and 48,941.40

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Solution

The fourth proportional to 52,440.60, 78,660.90 and 48,941.40 is: 73,412.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,440.60 : 78,660.90 = 48,941.40 : x
  2. Step 2: Convert to fraction form
    52,440.60/78,660.90 = 48,941.40/x
  3. Step 3: Cross multiply
    52,440.60x = 78,660.90 × 48,941.40
  4. Step 4: Simplify right side
    52,440.60x = 3,849,774,571.26
  5. Step 5: Solve for x
    x = 3,849,774,571.26/52,440.60
  6. Step 6: Final answer
    x = 73,412.10

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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.