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Finding the Fourth Proportional to 169,416.79, 254,123.73 and 43,057.40

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Solution

The fourth proportional to 169,416.79, 254,123.73 and 43,057.40 is: 64,585.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,416.79 : 254,123.73 = 43,057.40 : x
  2. Step 2: Convert to fraction form
    169,416.79/254,123.73 = 43,057.40/x
  3. Step 3: Cross multiply
    169,416.79x = 254,123.73 × 43,057.40
  4. Step 4: Simplify right side
    169,416.79x = 10,941,905,821.48
  5. Step 5: Solve for x
    x = 10,941,905,821.48/169,416.79
  6. Step 6: Final answer
    x = 64,585.72

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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.