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Finding the Fourth Proportional to 172,440, 237,980.88 and 96,994.08

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Solution

The fourth proportional to 172,440, 237,980.88 and 96,994.08 is: 133,859.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,440 : 237,980.88 = 96,994.08 : x
  2. Step 2: Convert to fraction form
    172,440/237,980.88 = 96,994.08/x
  3. Step 3: Cross multiply
    172,440x = 237,980.88 × 96,994.08
  4. Step 4: Simplify right side
    172,440x = 23,082,736,513.19
  5. Step 5: Solve for x
    x = 23,082,736,513.19/172,440
  6. Step 6: Final answer
    x = 133,859.53

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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.