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Finding the Fourth Proportional to 103,416.40, 155,153.40 and 50,827.60

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Solution

The fourth proportional to 103,416.40, 155,153.40 and 50,827.60 is: 76,255.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,416.40 : 155,153.40 = 50,827.60 : x
  2. Step 2: Convert to fraction form
    103,416.40/155,153.40 = 50,827.60/x
  3. Step 3: Cross multiply
    103,416.40x = 155,153.40 × 50,827.60
  4. Step 4: Simplify right side
    103,416.40x = 7,886,074,953.84
  5. Step 5: Solve for x
    x = 7,886,074,953.84/103,416.40
  6. Step 6: Final answer
    x = 76,255.55

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1.5x scale

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.