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Finding the Fourth Proportional to 96,999.70, 145,391.55 and 37,815.70

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Solution

The fourth proportional to 96,999.70, 145,391.55 and 37,815.70 is: 56,681.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,999.70 : 145,391.55 = 37,815.70 : x
  2. Step 2: Convert to fraction form
    96,999.70/145,391.55 = 37,815.70/x
  3. Step 3: Cross multiply
    96,999.70x = 145,391.55 × 37,815.70
  4. Step 4: Simplify right side
    96,999.70x = 5,498,083,237.34
  5. Step 5: Solve for x
    x = 5,498,083,237.34/96,999.70
  6. Step 6: Final answer
    x = 56,681.45

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1.5x scale

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.