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Finding the Fourth Proportional to 134,672.96, 185,848.68 and 74,244.64

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Solution

The fourth proportional to 134,672.96, 185,848.68 and 74,244.64 is: 102,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,672.96 : 185,848.68 = 74,244.64 : x
  2. Step 2: Convert to fraction form
    134,672.96/185,848.68 = 74,244.64/x
  3. Step 3: Cross multiply
    134,672.96x = 185,848.68 × 74,244.64
  4. Step 4: Simplify right side
    134,672.96x = 13,798,268,341.08
  5. Step 5: Solve for x
    x = 13,798,268,341.08/134,672.96
  6. Step 6: Final answer
    x = 102,457.60

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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.