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Finding the Fourth Proportional to 119,733.76, 179,602.32 and 57,389.68

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Solution

The fourth proportional to 119,733.76, 179,602.32 and 57,389.68 is: 86,085.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,733.76 : 179,602.32 = 57,389.68 : x
  2. Step 2: Convert to fraction form
    119,733.76/179,602.32 = 57,389.68/x
  3. Step 3: Cross multiply
    119,733.76x = 179,602.32 × 57,389.68
  4. Step 4: Simplify right side
    119,733.76x = 10,307,319,672.06
  5. Step 5: Solve for x
    x = 10,307,319,672.06/119,733.76
  6. Step 6: Final answer
    x = 86,085.33

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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.