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Finding the Fourth Proportional to 130,400.10, 195,600.15 and 130,400.10

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Solution

The fourth proportional to 130,400.10, 195,600.15 and 130,400.10 is: 195,600.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,400.10 : 195,600.15 = 130,400.10 : x
  2. Step 2: Convert to fraction form
    130,400.10/195,600.15 = 130,400.10/x
  3. Step 3: Cross multiply
    130,400.10x = 195,600.15 × 130,400.10
  4. Step 4: Simplify right side
    130,400.10x = 25,506,279,120.02
  5. Step 5: Solve for x
    x = 25,506,279,120.02/130,400.10
  6. Step 6: Final answer
    x = 195,600.15

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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.