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Finding the Fourth Proportional to 94,708.70, 130,747.16 and 69,186.42

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Solution

The fourth proportional to 94,708.70, 130,747.16 and 69,186.42 is: 95,513.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,708.70 : 130,747.16 = 69,186.42 : x
  2. Step 2: Convert to fraction form
    94,708.70/130,747.16 = 69,186.42/x
  3. Step 3: Cross multiply
    94,708.70x = 130,747.16 × 69,186.42
  4. Step 4: Simplify right side
    94,708.70x = 9,045,927,925.57
  5. Step 5: Solve for x
    x = 9,045,927,925.57/94,708.70
  6. Step 6: Final answer
    x = 95,513.17

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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.