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Finding the Fourth Proportional to 74,328.60, 111,492.90 and 49,402.20

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Solution

The fourth proportional to 74,328.60, 111,492.90 and 49,402.20 is: 74,103.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,328.60 : 111,492.90 = 49,402.20 : x
  2. Step 2: Convert to fraction form
    74,328.60/111,492.90 = 49,402.20/x
  3. Step 3: Cross multiply
    74,328.60x = 111,492.90 × 49,402.20
  4. Step 4: Simplify right side
    74,328.60x = 5,507,994,544.38
  5. Step 5: Solve for x
    x = 5,507,994,544.38/74,328.60
  6. Step 6: Final answer
    x = 74,103.30

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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.