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Finding the Fourth Proportional to 119,995.62, 165,909.42 and 118,101.06

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Solution

The fourth proportional to 119,995.62, 165,909.42 and 118,101.06 is: 163,289.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,995.62 : 165,909.42 = 118,101.06 : x
  2. Step 2: Convert to fraction form
    119,995.62/165,909.42 = 118,101.06/x
  3. Step 3: Cross multiply
    119,995.62x = 165,909.42 × 118,101.06
  4. Step 4: Simplify right side
    119,995.62x = 19,594,078,365.99
  5. Step 5: Solve for x
    x = 19,594,078,365.99/119,995.62
  6. Step 6: Final answer
    x = 163,289.95

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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.