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Finding the Fourth Proportional to 125,069.34, 172,597.59 and 68,485.98

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Solution

The fourth proportional to 125,069.34, 172,597.59 and 68,485.98 is: 94,511.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,069.34 : 172,597.59 = 68,485.98 : x
  2. Step 2: Convert to fraction form
    125,069.34/172,597.59 = 68,485.98/x
  3. Step 3: Cross multiply
    125,069.34x = 172,597.59 × 68,485.98
  4. Step 4: Simplify right side
    125,069.34x = 11,820,515,096.79
  5. Step 5: Solve for x
    x = 11,820,515,096.79/125,069.34
  6. Step 6: Final answer
    x = 94,511.69

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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.