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Finding the Fourth Proportional to 114,030.70, 157,357.72 and 63,040.19

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Solution

The fourth proportional to 114,030.70, 157,357.72 and 63,040.19 is: 86,992.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,030.70 : 157,357.72 = 63,040.19 : x
  2. Step 2: Convert to fraction form
    114,030.70/157,357.72 = 63,040.19/x
  3. Step 3: Cross multiply
    114,030.70x = 157,357.72 × 63,040.19
  4. Step 4: Simplify right side
    114,030.70x = 9,919,859,858.78
  5. Step 5: Solve for x
    x = 9,919,859,858.78/114,030.70
  6. Step 6: Final answer
    x = 86,992.89

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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.