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Finding the Fourth Proportional to 114,307.80, 171,461.70 and 69,984.60

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Solution

The fourth proportional to 114,307.80, 171,461.70 and 69,984.60 is: 104,976.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,307.80 : 171,461.70 = 69,984.60 : x
  2. Step 2: Convert to fraction form
    114,307.80/171,461.70 = 69,984.60/x
  3. Step 3: Cross multiply
    114,307.80x = 171,461.70 × 69,984.60
  4. Step 4: Simplify right side
    114,307.80x = 11,999,678,489.82
  5. Step 5: Solve for x
    x = 11,999,678,489.82/114,307.80
  6. Step 6: Final answer
    x = 104,976.90

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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.