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Finding the Fourth Proportional to 96,848.80, 145,324.80 and 37,686.40

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Solution

The fourth proportional to 96,848.80, 145,324.80 and 37,686.40 is: 56,549.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,848.80 : 145,324.80 = 37,686.40 : x
  2. Step 2: Convert to fraction form
    96,848.80/145,324.80 = 37,686.40/x
  3. Step 3: Cross multiply
    96,848.80x = 145,324.80 × 37,686.40
  4. Step 4: Simplify right side
    96,848.80x = 5,476,768,542.72
  5. Step 5: Solve for x
    x = 5,476,768,542.72/96,848.80
  6. Step 6: Final answer
    x = 56,549.68

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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.