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Finding the Fourth Proportional to 307,798.56, 461,746.32 and 130,306.56

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Solution

The fourth proportional to 307,798.56, 461,746.32 and 130,306.56 is: 195,480.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,798.56 : 461,746.32 = 130,306.56 : x
  2. Step 2: Convert to fraction form
    307,798.56/461,746.32 = 130,306.56/x
  3. Step 3: Cross multiply
    307,798.56x = 461,746.32 × 130,306.56
  4. Step 4: Simplify right side
    307,798.56x = 60,168,574,551.86
  5. Step 5: Solve for x
    x = 60,168,574,551.86/307,798.56
  6. Step 6: Final answer
    x = 195,480.36

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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.