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Finding the Fourth Proportional to 108,525.60, 152,143.20 and 108,525.60

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Solution

The fourth proportional to 108,525.60, 152,143.20 and 108,525.60 is: 152,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,525.60 : 152,143.20 = 108,525.60 : x
  2. Step 2: Convert to fraction form
    108,525.60/152,143.20 = 108,525.60/x
  3. Step 3: Cross multiply
    108,525.60x = 152,143.20 × 108,525.60
  4. Step 4: Simplify right side
    108,525.60x = 16,511,432,065.92
  5. Step 5: Solve for x
    x = 16,511,432,065.92/108,525.60
  6. Step 6: Final answer
    x = 152,143.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.