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Finding the Fourth Proportional to 151,063.59, 208,463.35 and 83,080.50

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Solution

The fourth proportional to 151,063.59, 208,463.35 and 83,080.50 is: 114,648.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,063.59 : 208,463.35 = 83,080.50 : x
  2. Step 2: Convert to fraction form
    151,063.59/208,463.35 = 83,080.50/x
  3. Step 3: Cross multiply
    151,063.59x = 208,463.35 × 83,080.50
  4. Step 4: Simplify right side
    151,063.59x = 17,319,239,349.68
  5. Step 5: Solve for x
    x = 17,319,239,349.68/151,063.59
  6. Step 6: Final answer
    x = 114,648.67

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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.