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Finding the Fourth Proportional to 270,192.58, 405,070.13 and 112,539.04

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Solution

The fourth proportional to 270,192.58, 405,070.13 and 112,539.04 is: 168,717.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,192.58 : 405,070.13 = 112,539.04 : x
  2. Step 2: Convert to fraction form
    270,192.58/405,070.13 = 112,539.04/x
  3. Step 3: Cross multiply
    270,192.58x = 405,070.13 × 112,539.04
  4. Step 4: Simplify right side
    270,192.58x = 45,586,202,831.55
  5. Step 5: Solve for x
    x = 45,586,202,831.55/270,192.58
  6. Step 6: Final answer
    x = 168,717.45

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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.