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Finding the Fourth Proportional to 115,798.40, 173,654.40 and 45,663.20

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Solution

The fourth proportional to 115,798.40, 173,654.40 and 45,663.20 is: 68,477.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,798.40 : 173,654.40 = 45,663.20 : x
  2. Step 2: Convert to fraction form
    115,798.40/173,654.40 = 45,663.20/x
  3. Step 3: Cross multiply
    115,798.40x = 173,654.40 × 45,663.20
  4. Step 4: Simplify right side
    115,798.40x = 7,929,615,598.08
  5. Step 5: Solve for x
    x = 7,929,615,598.08/115,798.40
  6. Step 6: Final answer
    x = 68,477.76

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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.