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Finding the Fourth Proportional to 152,947.20, 229,420.80 and 152,947.20

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Solution

The fourth proportional to 152,947.20, 229,420.80 and 152,947.20 is: 229,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,947.20 : 229,420.80 = 152,947.20 : x
  2. Step 2: Convert to fraction form
    152,947.20/229,420.80 = 152,947.20/x
  3. Step 3: Cross multiply
    152,947.20x = 229,420.80 × 152,947.20
  4. Step 4: Simplify right side
    152,947.20x = 35,089,268,981.76
  5. Step 5: Solve for x
    x = 35,089,268,981.76/152,947.20
  6. Step 6: Final answer
    x = 229,420.80

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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.