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Finding the Fourth Proportional to 120,047.64, 180,184.47 and 60,925.74

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Solution

The fourth proportional to 120,047.64, 180,184.47 and 60,925.74 is: 91,445.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,047.64 : 180,184.47 = 60,925.74 : x
  2. Step 2: Convert to fraction form
    120,047.64/180,184.47 = 60,925.74/x
  3. Step 3: Cross multiply
    120,047.64x = 180,184.47 × 60,925.74
  4. Step 4: Simplify right side
    120,047.64x = 10,977,872,171.26
  5. Step 5: Solve for x
    x = 10,977,872,171.26/120,047.64
  6. Step 6: Final answer
    x = 91,445.96

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Why These Related Problems?

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