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Finding the Fourth Proportional to 112,687.16, 169,019.73 and 29,581.16

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Solution

The fourth proportional to 112,687.16, 169,019.73 and 29,581.16 is: 44,368.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,687.16 : 169,019.73 = 29,581.16 : x
  2. Step 2: Convert to fraction form
    112,687.16/169,019.73 = 29,581.16/x
  3. Step 3: Cross multiply
    112,687.16x = 169,019.73 × 29,581.16
  4. Step 4: Simplify right side
    112,687.16x = 4,999,798,831.19
  5. Step 5: Solve for x
    x = 4,999,798,831.19/112,687.16
  6. Step 6: Final answer
    x = 44,368.84

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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.