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Finding the Fourth Proportional to 97,613.52, 134,738.28 and 57,326.28

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Solution

The fourth proportional to 97,613.52, 134,738.28 and 57,326.28 is: 79,128.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,613.52 : 134,738.28 = 57,326.28 : x
  2. Step 2: Convert to fraction form
    97,613.52/134,738.28 = 57,326.28/x
  3. Step 3: Cross multiply
    97,613.52x = 134,738.28 × 57,326.28
  4. Step 4: Simplify right side
    97,613.52x = 7,724,044,366.00
  5. Step 5: Solve for x
    x = 7,724,044,366.00/97,613.52
  6. Step 6: Final answer
    x = 79,128.84

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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.