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Finding the Fourth Proportional to 114,347.70, 171,711.63 and 77,147.10

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Solution

The fourth proportional to 114,347.70, 171,711.63 and 77,147.10 is: 115,848.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,347.70 : 171,711.63 = 77,147.10 : x
  2. Step 2: Convert to fraction form
    114,347.70/171,711.63 = 77,147.10/x
  3. Step 3: Cross multiply
    114,347.70x = 171,711.63 × 77,147.10
  4. Step 4: Simplify right side
    114,347.70x = 13,247,054,290.77
  5. Step 5: Solve for x
    x = 13,247,054,290.77/114,347.70
  6. Step 6: Final answer
    x = 115,848.89

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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.