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Finding the Fourth Proportional to 83,484.54, 115,220.48 and 51,663.69

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Solution

The fourth proportional to 83,484.54, 115,220.48 and 51,663.69 is: 71,303.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,484.54 : 115,220.48 = 51,663.69 : x
  2. Step 2: Convert to fraction form
    83,484.54/115,220.48 = 51,663.69/x
  3. Step 3: Cross multiply
    83,484.54x = 115,220.48 × 51,663.69
  4. Step 4: Simplify right side
    83,484.54x = 5,952,714,902.05
  5. Step 5: Solve for x
    x = 5,952,714,902.05/83,484.54
  6. Step 6: Final answer
    x = 71,303.20

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1.5x scale

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.