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Finding the Fourth Proportional to 243,953.40, 365,930.10 and 125,585.40

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Solution

The fourth proportional to 243,953.40, 365,930.10 and 125,585.40 is: 188,378.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,953.40 : 365,930.10 = 125,585.40 : x
  2. Step 2: Convert to fraction form
    243,953.40/365,930.10 = 125,585.40/x
  3. Step 3: Cross multiply
    243,953.40x = 365,930.10 × 125,585.40
  4. Step 4: Simplify right side
    243,953.40x = 45,955,477,980.54
  5. Step 5: Solve for x
    x = 45,955,477,980.54/243,953.40
  6. Step 6: Final answer
    x = 188,378.10

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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.