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Finding the Fourth Proportional to 252,294.52, 348,148.64 and 139,114.84

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Solution

The fourth proportional to 252,294.52, 348,148.64 and 139,114.84 is: 191,968.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,294.52 : 348,148.64 = 139,114.84 : x
  2. Step 2: Convert to fraction form
    252,294.52/348,148.64 = 139,114.84/x
  3. Step 3: Cross multiply
    252,294.52x = 348,148.64 × 139,114.84
  4. Step 4: Simplify right side
    252,294.52x = 48,432,642,349.82
  5. Step 5: Solve for x
    x = 48,432,642,349.82/252,294.52
  6. Step 6: Final answer
    x = 191,968.67

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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.