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Finding the Fourth Proportional to 119,172.59, 178,749.63 and 56,006.54

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Solution

The fourth proportional to 119,172.59, 178,749.63 and 56,006.54 is: 84,005.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,172.59 : 178,749.63 = 56,006.54 : x
  2. Step 2: Convert to fraction form
    119,172.59/178,749.63 = 56,006.54/x
  3. Step 3: Cross multiply
    119,172.59x = 178,749.63 × 56,006.54
  4. Step 4: Simplify right side
    119,172.59x = 10,011,148,302.58
  5. Step 5: Solve for x
    x = 10,011,148,302.58/119,172.59
  6. Step 6: Final answer
    x = 84,005.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.