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Finding the Fourth Proportional to 84,794.54, 117,011.16 and 48,978.74

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Solution

The fourth proportional to 84,794.54, 117,011.16 and 48,978.74 is: 67,587.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,794.54 : 117,011.16 = 48,978.74 : x
  2. Step 2: Convert to fraction form
    84,794.54/117,011.16 = 48,978.74/x
  3. Step 3: Cross multiply
    84,794.54x = 117,011.16 × 48,978.74
  4. Step 4: Simplify right side
    84,794.54x = 5,731,059,182.74
  5. Step 5: Solve for x
    x = 5,731,059,182.74/84,794.54
  6. Step 6: Final answer
    x = 67,587.60

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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.