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Finding the Fourth Proportional to 164,623.60, 247,050.60 and 105,602.80

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Solution

The fourth proportional to 164,623.60, 247,050.60 and 105,602.80 is: 158,478.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,623.60 : 247,050.60 = 105,602.80 : x
  2. Step 2: Convert to fraction form
    164,623.60/247,050.60 = 105,602.80/x
  3. Step 3: Cross multiply
    164,623.60x = 247,050.60 × 105,602.80
  4. Step 4: Simplify right side
    164,623.60x = 26,089,235,101.68
  5. Step 5: Solve for x
    x = 26,089,235,101.68/164,623.60
  6. Step 6: Final answer
    x = 158,478.10

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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.