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Finding the Fourth Proportional to 157,951.26, 217,831.59 and 131,051.16

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Solution

The fourth proportional to 157,951.26, 217,831.59 and 131,051.16 is: 180,733.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,951.26 : 217,831.59 = 131,051.16 : x
  2. Step 2: Convert to fraction form
    157,951.26/217,831.59 = 131,051.16/x
  3. Step 3: Cross multiply
    157,951.26x = 217,831.59 × 131,051.16
  4. Step 4: Simplify right side
    157,951.26x = 28,547,082,554.14
  5. Step 5: Solve for x
    x = 28,547,082,554.14/157,951.26
  6. Step 6: Final answer
    x = 180,733.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.