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Finding the Fourth Proportional to 103,697.58, 155,525.10 and 28,798.90

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Solution

The fourth proportional to 103,697.58, 155,525.10 and 28,798.90 is: 43,192.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,697.58 : 155,525.10 = 28,798.90 : x
  2. Step 2: Convert to fraction form
    103,697.58/155,525.10 = 28,798.90/x
  3. Step 3: Cross multiply
    103,697.58x = 155,525.10 × 28,798.90
  4. Step 4: Simplify right side
    103,697.58x = 4,478,951,802.39
  5. Step 5: Solve for x
    x = 4,478,951,802.39/103,697.58
  6. Step 6: Final answer
    x = 43,192.44

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1.5x scale

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.