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Finding the Fourth Proportional to 119,683.28, 165,162.30 and 65,968.40

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Solution

The fourth proportional to 119,683.28, 165,162.30 and 65,968.40 is: 91,036.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,683.28 : 165,162.30 = 65,968.40 : x
  2. Step 2: Convert to fraction form
    119,683.28/165,162.30 = 65,968.40/x
  3. Step 3: Cross multiply
    119,683.28x = 165,162.30 × 65,968.40
  4. Step 4: Simplify right side
    119,683.28x = 10,895,492,671.32
  5. Step 5: Solve for x
    x = 10,895,492,671.32/119,683.28
  6. Step 6: Final answer
    x = 91,036.05

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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.