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Finding the Fourth Proportional to 121,573.40, 182,141.40 and 104,077.40

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Solution

The fourth proportional to 121,573.40, 182,141.40 and 104,077.40 is: 155,928.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,573.40 : 182,141.40 = 104,077.40 : x
  2. Step 2: Convert to fraction form
    121,573.40/182,141.40 = 104,077.40/x
  3. Step 3: Cross multiply
    121,573.40x = 182,141.40 × 104,077.40
  4. Step 4: Simplify right side
    121,573.40x = 18,956,803,344.36
  5. Step 5: Solve for x
    x = 18,956,803,344.36/121,573.40
  6. Step 6: Final answer
    x = 155,928.87

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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.