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Finding the Fourth Proportional to 172,941.96, 238,648.50 and 97,488.84

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Solution

The fourth proportional to 172,941.96, 238,648.50 and 97,488.84 is: 134,528.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,941.96 : 238,648.50 = 97,488.84 : x
  2. Step 2: Convert to fraction form
    172,941.96/238,648.50 = 97,488.84/x
  3. Step 3: Cross multiply
    172,941.96x = 238,648.50 × 97,488.84
  4. Step 4: Simplify right side
    172,941.96x = 23,265,565,432.74
  5. Step 5: Solve for x
    x = 23,265,565,432.74/172,941.96
  6. Step 6: Final answer
    x = 134,528.17

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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.