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Finding the Fourth Proportional to 119,888.37, 165,505.83 and 74,581.08

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Solution

The fourth proportional to 119,888.37, 165,505.83 and 74,581.08 is: 102,959.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,888.37 : 165,505.83 = 74,581.08 : x
  2. Step 2: Convert to fraction form
    119,888.37/165,505.83 = 74,581.08/x
  3. Step 3: Cross multiply
    119,888.37x = 165,505.83 × 74,581.08
  4. Step 4: Simplify right side
    119,888.37x = 12,343,603,547.70
  5. Step 5: Solve for x
    x = 12,343,603,547.70/119,888.37
  6. Step 6: Final answer
    x = 102,959.14

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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.