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Finding the Fourth Proportional to 235,356.98, 353,035.46 and 85,602.15

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Solution

The fourth proportional to 235,356.98, 353,035.46 and 85,602.15 is: 128,403.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,356.98 : 353,035.46 = 85,602.15 : x
  2. Step 2: Convert to fraction form
    235,356.98/353,035.46 = 85,602.15/x
  3. Step 3: Cross multiply
    235,356.98x = 353,035.46 × 85,602.15
  4. Step 4: Simplify right side
    235,356.98x = 30,220,594,616.24
  5. Step 5: Solve for x
    x = 30,220,594,616.24/235,356.98
  6. Step 6: Final answer
    x = 128,403.23

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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.