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Finding the Fourth Proportional to 98,615.60, 147,923.40 and 36,310.40

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Solution

The fourth proportional to 98,615.60, 147,923.40 and 36,310.40 is: 54,465.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,615.60 : 147,923.40 = 36,310.40 : x
  2. Step 2: Convert to fraction form
    98,615.60/147,923.40 = 36,310.40/x
  3. Step 3: Cross multiply
    98,615.60x = 147,923.40 × 36,310.40
  4. Step 4: Simplify right side
    98,615.60x = 5,371,157,823.36
  5. Step 5: Solve for x
    x = 5,371,157,823.36/98,615.60
  6. Step 6: Final answer
    x = 54,465.60

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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.