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Finding the Fourth Proportional to 94,006, 129,728.28 and 51,564.63

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Solution

The fourth proportional to 94,006, 129,728.28 and 51,564.63 is: 71,159.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,006 : 129,728.28 = 51,564.63 : x
  2. Step 2: Convert to fraction form
    94,006/129,728.28 = 51,564.63/x
  3. Step 3: Cross multiply
    94,006x = 129,728.28 × 51,564.63
  4. Step 4: Simplify right side
    94,006x = 6,689,390,758.74
  5. Step 5: Solve for x
    x = 6,689,390,758.74/94,006
  6. Step 6: Final answer
    x = 71,159.19

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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.