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Finding the Fourth Proportional to 74,416.60, 102,693.18 and 42,592.60

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Solution

The fourth proportional to 74,416.60, 102,693.18 and 42,592.60 is: 58,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,416.60 : 102,693.18 = 42,592.60 : x
  2. Step 2: Convert to fraction form
    74,416.60/102,693.18 = 42,592.60/x
  3. Step 3: Cross multiply
    74,416.60x = 102,693.18 × 42,592.60
  4. Step 4: Simplify right side
    74,416.60x = 4,373,969,538.47
  5. Step 5: Solve for x
    x = 4,373,969,538.47/74,416.60
  6. Step 6: Final answer
    x = 58,776.80

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.