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Finding the Fourth Proportional to 164,612.70, 247,210.65 and 127,263.60

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Solution

The fourth proportional to 164,612.70, 247,210.65 and 127,263.60 is: 191,120.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,612.70 : 247,210.65 = 127,263.60 : x
  2. Step 2: Convert to fraction form
    164,612.70/247,210.65 = 127,263.60/x
  3. Step 3: Cross multiply
    164,612.70x = 247,210.65 × 127,263.60
  4. Step 4: Simplify right side
    164,612.70x = 31,460,917,277.34
  5. Step 5: Solve for x
    x = 31,460,917,277.34/164,612.70
  6. Step 6: Final answer
    x = 191,120.84

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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.