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Finding the Fourth Proportional to 94,302.70, 130,139.31 and 54,019.98

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Solution

The fourth proportional to 94,302.70, 130,139.31 and 54,019.98 is: 74,548.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,302.70 : 130,139.31 = 54,019.98 : x
  2. Step 2: Convert to fraction form
    94,302.70/130,139.31 = 54,019.98/x
  3. Step 3: Cross multiply
    94,302.70x = 130,139.31 × 54,019.98
  4. Step 4: Simplify right side
    94,302.70x = 7,030,122,822.13
  5. Step 5: Solve for x
    x = 7,030,122,822.13/94,302.70
  6. Step 6: Final answer
    x = 74,548.48

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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.