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Finding the Fourth Proportional to 172,486.45, 238,031.08 and 97,034.95

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Solution

The fourth proportional to 172,486.45, 238,031.08 and 97,034.95 is: 133,908.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,486.45 : 238,031.08 = 97,034.95 : x
  2. Step 2: Convert to fraction form
    172,486.45/238,031.08 = 97,034.95/x
  3. Step 3: Cross multiply
    172,486.45x = 238,031.08 × 97,034.95
  4. Step 4: Simplify right side
    172,486.45x = 23,097,333,946.25
  5. Step 5: Solve for x
    x = 23,097,333,946.25/172,486.45
  6. Step 6: Final answer
    x = 133,908.11

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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.