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Finding the Fourth Proportional to 152,999.52, 211,144.10 and 84,087.74

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Solution

The fourth proportional to 152,999.52, 211,144.10 and 84,087.74 is: 116,043.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,999.52 : 211,144.10 = 84,087.74 : x
  2. Step 2: Convert to fraction form
    152,999.52/211,144.10 = 84,087.74/x
  3. Step 3: Cross multiply
    152,999.52x = 211,144.10 × 84,087.74
  4. Step 4: Simplify right side
    152,999.52x = 17,754,630,183.33
  5. Step 5: Solve for x
    x = 17,754,630,183.33/152,999.52
  6. Step 6: Final answer
    x = 116,043.70

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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.