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Finding the Fourth Proportional to 169,397.88, 254,044.80 and 117,143.16

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Solution

The fourth proportional to 169,397.88, 254,044.80 and 117,143.16 is: 175,678.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,397.88 : 254,044.80 = 117,143.16 : x
  2. Step 2: Convert to fraction form
    169,397.88/254,044.80 = 117,143.16/x
  3. Step 3: Cross multiply
    169,397.88x = 254,044.80 × 117,143.16
  4. Step 4: Simplify right side
    169,397.88x = 29,759,610,653.57
  5. Step 5: Solve for x
    x = 29,759,610,653.57/169,397.88
  6. Step 6: Final answer
    x = 175,678.77

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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.