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Finding the Fourth Proportional to 149,492.20, 209,444.60 and 149,492.20

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Solution

The fourth proportional to 149,492.20, 209,444.60 and 149,492.20 is: 209,444.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,492.20 : 209,444.60 = 149,492.20 : x
  2. Step 2: Convert to fraction form
    149,492.20/209,444.60 = 149,492.20/x
  3. Step 3: Cross multiply
    149,492.20x = 209,444.60 × 149,492.20
  4. Step 4: Simplify right side
    149,492.20x = 31,310,334,032.12
  5. Step 5: Solve for x
    x = 31,310,334,032.12/149,492.20
  6. Step 6: Final answer
    x = 209,444.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.