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Finding the Fourth Proportional to 85,240.59, 127,904.07 and 56,796.99

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Solution

The fourth proportional to 85,240.59, 127,904.07 and 56,796.99 is: 85,224.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,240.59 : 127,904.07 = 56,796.99 : x
  2. Step 2: Convert to fraction form
    85,240.59/127,904.07 = 56,796.99/x
  3. Step 3: Cross multiply
    85,240.59x = 127,904.07 × 56,796.99
  4. Step 4: Simplify right side
    85,240.59x = 7,264,565,545.23
  5. Step 5: Solve for x
    x = 7,264,565,545.23/85,240.59
  6. Step 6: Final answer
    x = 85,224.25

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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.