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Finding the Fourth Proportional to 181,740.40, 273,071.40 and 161,465.20

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Solution

The fourth proportional to 181,740.40, 273,071.40 and 161,465.20 is: 242,607.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,740.40 : 273,071.40 = 161,465.20 : x
  2. Step 2: Convert to fraction form
    181,740.40/273,071.40 = 161,465.20/x
  3. Step 3: Cross multiply
    181,740.40x = 273,071.40 × 161,465.20
  4. Step 4: Simplify right side
    181,740.40x = 44,091,528,215.28
  5. Step 5: Solve for x
    x = 44,091,528,215.28/181,740.40
  6. Step 6: Final answer
    x = 242,607.19

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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.