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Finding the Fourth Proportional to 96,703.40, 145,443.90 and 86,594.60

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Solution

The fourth proportional to 96,703.40, 145,443.90 and 86,594.60 is: 130,240.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,703.40 : 145,443.90 = 86,594.60 : x
  2. Step 2: Convert to fraction form
    96,703.40/145,443.90 = 86,594.60/x
  3. Step 3: Cross multiply
    96,703.40x = 145,443.90 × 86,594.60
  4. Step 4: Simplify right side
    96,703.40x = 12,594,656,342.94
  5. Step 5: Solve for x
    x = 12,594,656,342.94/96,703.40
  6. Step 6: Final answer
    x = 130,240.06

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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.