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Finding the Fourth Proportional to 252,248.72, 348,097.96 and 139,071.76

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Solution

The fourth proportional to 252,248.72, 348,097.96 and 139,071.76 is: 191,916.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,248.72 : 348,097.96 = 139,071.76 : x
  2. Step 2: Convert to fraction form
    252,248.72/348,097.96 = 139,071.76/x
  3. Step 3: Cross multiply
    252,248.72x = 348,097.96 × 139,071.76
  4. Step 4: Simplify right side
    252,248.72x = 48,410,595,949.61
  5. Step 5: Solve for x
    x = 48,410,595,949.61/252,248.72
  6. Step 6: Final answer
    x = 191,916.12

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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.