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Finding the Fourth Proportional to 82,483.60, 123,729.45 and 43,117.60

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Solution

The fourth proportional to 82,483.60, 123,729.45 and 43,117.60 is: 64,678.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,483.60 : 123,729.45 = 43,117.60 : x
  2. Step 2: Convert to fraction form
    82,483.60/123,729.45 = 43,117.60/x
  3. Step 3: Cross multiply
    82,483.60x = 123,729.45 × 43,117.60
  4. Step 4: Simplify right side
    82,483.60x = 5,334,916,933.32
  5. Step 5: Solve for x
    x = 5,334,916,933.32/82,483.60
  6. Step 6: Final answer
    x = 64,678.52

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.