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Finding the Fourth Proportional to 130,511.40, 195,329.70 and 130,511.40

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Solution

The fourth proportional to 130,511.40, 195,329.70 and 130,511.40 is: 195,329.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,511.40 : 195,329.70 = 130,511.40 : x
  2. Step 2: Convert to fraction form
    130,511.40/195,329.70 = 130,511.40/x
  3. Step 3: Cross multiply
    130,511.40x = 195,329.70 × 130,511.40
  4. Step 4: Simplify right side
    130,511.40x = 25,492,752,608.58
  5. Step 5: Solve for x
    x = 25,492,752,608.58/130,511.40
  6. Step 6: Final answer
    x = 195,329.70

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1.5x scale

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.