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Finding the Fourth Proportional to 130,389.40, 195,713.70 and 63,904.60

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Solution

The fourth proportional to 130,389.40, 195,713.70 and 63,904.60 is: 95,920.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,389.40 : 195,713.70 = 63,904.60 : x
  2. Step 2: Convert to fraction form
    130,389.40/195,713.70 = 63,904.60/x
  3. Step 3: Cross multiply
    130,389.40x = 195,713.70 × 63,904.60
  4. Step 4: Simplify right side
    130,389.40x = 12,507,005,713.02
  5. Step 5: Solve for x
    x = 12,507,005,713.02/130,389.40
  6. Step 6: Final answer
    x = 95,920.42

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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.