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Finding the Fourth Proportional to 129,973.60, 182,356.70 and 129,973.60

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Solution

The fourth proportional to 129,973.60, 182,356.70 and 129,973.60 is: 182,356.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,973.60 : 182,356.70 = 129,973.60 : x
  2. Step 2: Convert to fraction form
    129,973.60/182,356.70 = 129,973.60/x
  3. Step 3: Cross multiply
    129,973.60x = 182,356.70 × 129,973.60
  4. Step 4: Simplify right side
    129,973.60x = 23,701,556,783.12
  5. Step 5: Solve for x
    x = 23,701,556,783.12/129,973.60
  6. Step 6: Final answer
    x = 182,356.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.