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Finding the Fourth Proportional to 67,755.36, 93,548 and 42,300.48

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Solution

The fourth proportional to 67,755.36, 93,548 and 42,300.48 is: 58,403.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,755.36 : 93,548 = 42,300.48 : x
  2. Step 2: Convert to fraction form
    67,755.36/93,548 = 42,300.48/x
  3. Step 3: Cross multiply
    67,755.36x = 93,548 × 42,300.48
  4. Step 4: Simplify right side
    67,755.36x = 3,957,125,303.04
  5. Step 5: Solve for x
    x = 3,957,125,303.04/67,755.36
  6. Step 6: Final answer
    x = 58,403.13

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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.