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Finding the Fourth Proportional to 353,973.60, 530,960.40 and 104,655.60

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Solution

The fourth proportional to 353,973.60, 530,960.40 and 104,655.60 is: 156,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,973.60 : 530,960.40 = 104,655.60 : x
  2. Step 2: Convert to fraction form
    353,973.60/530,960.40 = 104,655.60/x
  3. Step 3: Cross multiply
    353,973.60x = 530,960.40 × 104,655.60
  4. Step 4: Simplify right side
    353,973.60x = 55,567,979,238.24
  5. Step 5: Solve for x
    x = 55,567,979,238.24/353,973.60
  6. Step 6: Final answer
    x = 156,983.40

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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.