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Finding the Fourth Proportional to 113,492.40, 170,238.60 and 43,362.60

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Solution

The fourth proportional to 113,492.40, 170,238.60 and 43,362.60 is: 65,043.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,492.40 : 170,238.60 = 43,362.60 : x
  2. Step 2: Convert to fraction form
    113,492.40/170,238.60 = 43,362.60/x
  3. Step 3: Cross multiply
    113,492.40x = 170,238.60 × 43,362.60
  4. Step 4: Simplify right side
    113,492.40x = 7,381,988,316.36
  5. Step 5: Solve for x
    x = 7,381,988,316.36/113,492.40
  6. Step 6: Final answer
    x = 65,043.90

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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.