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Finding the Fourth Proportional to 119,907.61, 165,473.03 and 66,193.07

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Solution

The fourth proportional to 119,907.61, 165,473.03 and 66,193.07 is: 91,346.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,907.61 : 165,473.03 = 66,193.07 : x
  2. Step 2: Convert to fraction form
    119,907.61/165,473.03 = 66,193.07/x
  3. Step 3: Cross multiply
    119,907.61x = 165,473.03 × 66,193.07
  4. Step 4: Simplify right side
    119,907.61x = 10,953,166,823.68
  5. Step 5: Solve for x
    x = 10,953,166,823.68/119,907.61
  6. Step 6: Final answer
    x = 91,346.72

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1.5x scale

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.