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Finding the Fourth Proportional to 130,322.40, 195,332.40 and 60,208.80

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Solution

The fourth proportional to 130,322.40, 195,332.40 and 60,208.80 is: 90,243.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,322.40 : 195,332.40 = 60,208.80 : x
  2. Step 2: Convert to fraction form
    130,322.40/195,332.40 = 60,208.80/x
  3. Step 3: Cross multiply
    130,322.40x = 195,332.40 × 60,208.80
  4. Step 4: Simplify right side
    130,322.40x = 11,760,729,405.12
  5. Step 5: Solve for x
    x = 11,760,729,405.12/130,322.40
  6. Step 6: Final answer
    x = 90,243.35

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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.