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Finding the Fourth Proportional to 114,977.36, 158,668.80 and 64,676.40

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Solution

The fourth proportional to 114,977.36, 158,668.80 and 64,676.40 is: 89,253.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,977.36 : 158,668.80 = 64,676.40 : x
  2. Step 2: Convert to fraction form
    114,977.36/158,668.80 = 64,676.40/x
  3. Step 3: Cross multiply
    114,977.36x = 158,668.80 × 64,676.40
  4. Step 4: Simplify right side
    114,977.36x = 10,262,126,776.32
  5. Step 5: Solve for x
    x = 10,262,126,776.32/114,977.36
  6. Step 6: Final answer
    x = 89,253.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.