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Finding the Fourth Proportional to 164,730.60, 247,211.10 and 71,303.40

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Solution

The fourth proportional to 164,730.60, 247,211.10 and 71,303.40 is: 107,004.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,730.60 : 247,211.10 = 71,303.40 : x
  2. Step 2: Convert to fraction form
    164,730.60/247,211.10 = 71,303.40/x
  3. Step 3: Cross multiply
    164,730.60x = 247,211.10 × 71,303.40
  4. Step 4: Simplify right side
    164,730.60x = 17,626,991,947.74
  5. Step 5: Solve for x
    x = 17,626,991,947.74/164,730.60
  6. Step 6: Final answer
    x = 107,004.96

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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.