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Finding the Fourth Proportional to 145,035.56, 217,396.02 and 56,262.80

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Solution

The fourth proportional to 145,035.56, 217,396.02 and 56,262.80 is: 84,333.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,035.56 : 217,396.02 = 56,262.80 : x
  2. Step 2: Convert to fraction form
    145,035.56/217,396.02 = 56,262.80/x
  3. Step 3: Cross multiply
    145,035.56x = 217,396.02 × 56,262.80
  4. Step 4: Simplify right side
    145,035.56x = 12,231,308,794.06
  5. Step 5: Solve for x
    x = 12,231,308,794.06/145,035.56
  6. Step 6: Final answer
    x = 84,333.17

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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.