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Finding the Fourth Proportional to 189,465.20, 265,742.80 and 189,465.20

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Solution

The fourth proportional to 189,465.20, 265,742.80 and 189,465.20 is: 265,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,465.20 : 265,742.80 = 189,465.20 : x
  2. Step 2: Convert to fraction form
    189,465.20/265,742.80 = 189,465.20/x
  3. Step 3: Cross multiply
    189,465.20x = 265,742.80 × 189,465.20
  4. Step 4: Simplify right side
    189,465.20x = 50,349,012,750.56
  5. Step 5: Solve for x
    x = 50,349,012,750.56/189,465.20
  6. Step 6: Final answer
    x = 265,742.80

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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.