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Finding the Fourth Proportional to 94,712.67, 130,720.43 and 56,474.69

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Solution

The fourth proportional to 94,712.67, 130,720.43 and 56,474.69 is: 77,945.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,712.67 : 130,720.43 = 56,474.69 : x
  2. Step 2: Convert to fraction form
    94,712.67/130,720.43 = 56,474.69/x
  3. Step 3: Cross multiply
    94,712.67x = 130,720.43 × 56,474.69
  4. Step 4: Simplify right side
    94,712.67x = 7,382,395,248.50
  5. Step 5: Solve for x
    x = 7,382,395,248.50/94,712.67
  6. Step 6: Final answer
    x = 77,945.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.