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Finding the Fourth Proportional to 243,753.30, 365,629.95 and 125,655.30

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Solution

The fourth proportional to 243,753.30, 365,629.95 and 125,655.30 is: 188,482.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,753.30 : 365,629.95 = 125,655.30 : x
  2. Step 2: Convert to fraction form
    243,753.30/365,629.95 = 125,655.30/x
  3. Step 3: Cross multiply
    243,753.30x = 365,629.95 × 125,655.30
  4. Step 4: Simplify right side
    243,753.30x = 45,943,341,056.24
  5. Step 5: Solve for x
    x = 45,943,341,056.24/243,753.30
  6. Step 6: Final answer
    x = 188,482.95

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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.