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Finding the Fourth Proportional to 133,699.50, 200,482.47 and 43,730.47

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Solution

The fourth proportional to 133,699.50, 200,482.47 and 43,730.47 is: 65,573.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,699.50 : 200,482.47 = 43,730.47 : x
  2. Step 2: Convert to fraction form
    133,699.50/200,482.47 = 43,730.47/x
  3. Step 3: Cross multiply
    133,699.50x = 200,482.47 × 43,730.47
  4. Step 4: Simplify right side
    133,699.50x = 8,767,192,639.86
  5. Step 5: Solve for x
    x = 8,767,192,639.86/133,699.50
  6. Step 6: Final answer
    x = 65,573.86

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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.