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Finding the Fourth Proportional to 172,245.94, 258,352.20 and 52,303.93

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Solution

The fourth proportional to 172,245.94, 258,352.20 and 52,303.93 is: 78,450.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,245.94 : 258,352.20 = 52,303.93 : x
  2. Step 2: Convert to fraction form
    172,245.94/258,352.20 = 52,303.93/x
  3. Step 3: Cross multiply
    172,245.94x = 258,352.20 × 52,303.93
  4. Step 4: Simplify right side
    172,245.94x = 13,512,834,807.22
  5. Step 5: Solve for x
    x = 13,512,834,807.22/172,245.94
  6. Step 6: Final answer
    x = 78,450.82

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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.