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Finding the Fourth Proportional to 307,725.40, 461,631.30 and 97,341.40

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Solution

The fourth proportional to 307,725.40, 461,631.30 and 97,341.40 is: 146,025.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,725.40 : 461,631.30 = 97,341.40 : x
  2. Step 2: Convert to fraction form
    307,725.40/461,631.30 = 97,341.40/x
  3. Step 3: Cross multiply
    307,725.40x = 461,631.30 × 97,341.40
  4. Step 4: Simplify right side
    307,725.40x = 44,935,837,025.82
  5. Step 5: Solve for x
    x = 44,935,837,025.82/307,725.40
  6. Step 6: Final answer
    x = 146,025.77

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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.