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Finding the Fourth Proportional to 172,486.40, 238,030.85 and 97,034.90

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Solution

The fourth proportional to 172,486.40, 238,030.85 and 97,034.90 is: 133,907.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,486.40 : 238,030.85 = 97,034.90 : x
  2. Step 2: Convert to fraction form
    172,486.40/238,030.85 = 97,034.90/x
  3. Step 3: Cross multiply
    172,486.40x = 238,030.85 × 97,034.90
  4. Step 4: Simplify right side
    172,486.40x = 23,097,298,051.34
  5. Step 5: Solve for x
    x = 23,097,298,051.34/172,486.40
  6. Step 6: Final answer
    x = 133,907.94

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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.