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Finding the Fourth Proportional to 265,485.60, 398,428.88 and 181,045.53

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Solution

The fourth proportional to 265,485.60, 398,428.88 and 181,045.53 is: 271,705.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,485.60 : 398,428.88 = 181,045.53 : x
  2. Step 2: Convert to fraction form
    265,485.60/398,428.88 = 181,045.53/x
  3. Step 3: Cross multiply
    265,485.60x = 398,428.88 × 181,045.53
  4. Step 4: Simplify right side
    265,485.60x = 72,133,766,841.68
  5. Step 5: Solve for x
    x = 72,133,766,841.68/265,485.60
  6. Step 6: Final answer
    x = 271,705.01

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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.