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Finding the Fourth Proportional to 235,998.16, 353,165.40 and 147,293.20

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Solution

The fourth proportional to 235,998.16, 353,165.40 and 147,293.20 is: 220,420.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,998.16 : 353,165.40 = 147,293.20 : x
  2. Step 2: Convert to fraction form
    235,998.16/353,165.40 = 147,293.20/x
  3. Step 3: Cross multiply
    235,998.16x = 353,165.40 × 147,293.20
  4. Step 4: Simplify right side
    235,998.16x = 52,018,861,895.28
  5. Step 5: Solve for x
    x = 52,018,861,895.28/235,998.16
  6. Step 6: Final answer
    x = 220,420.62

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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.