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Finding the Fourth Proportional to 84,790.97, 117,011.99 and 52,978.32

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Solution

The fourth proportional to 84,790.97, 117,011.99 and 52,978.32 is: 73,110.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,790.97 : 117,011.99 = 52,978.32 : x
  2. Step 2: Convert to fraction form
    84,790.97/117,011.99 = 52,978.32/x
  3. Step 3: Cross multiply
    84,790.97x = 117,011.99 × 52,978.32
  4. Step 4: Simplify right side
    84,790.97x = 6,199,098,782.50
  5. Step 5: Solve for x
    x = 6,199,098,782.50/84,790.97
  6. Step 6: Final answer
    x = 73,110.37

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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.