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Finding the Fourth Proportional to 98,994.80, 148,492.20 and 57,004.40

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Solution

The fourth proportional to 98,994.80, 148,492.20 and 57,004.40 is: 85,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,994.80 : 148,492.20 = 57,004.40 : x
  2. Step 2: Convert to fraction form
    98,994.80/148,492.20 = 57,004.40/x
  3. Step 3: Cross multiply
    98,994.80x = 148,492.20 × 57,004.40
  4. Step 4: Simplify right side
    98,994.80x = 8,464,708,765.68
  5. Step 5: Solve for x
    x = 8,464,708,765.68/98,994.80
  6. Step 6: Final answer
    x = 85,506.60

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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.