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Finding the Fourth Proportional to 235,120.69, 352,681.04 and 77,306.77

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Solution

The fourth proportional to 235,120.69, 352,681.04 and 77,306.77 is: 115,960.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,120.69 : 352,681.04 = 77,306.77 : x
  2. Step 2: Convert to fraction form
    235,120.69/352,681.04 = 77,306.77/x
  3. Step 3: Cross multiply
    235,120.69x = 352,681.04 × 77,306.77
  4. Step 4: Simplify right side
    235,120.69x = 27,264,632,042.64
  5. Step 5: Solve for x
    x = 27,264,632,042.64/235,120.69
  6. Step 6: Final answer
    x = 115,960.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.