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Finding the Fourth Proportional to 101,585.93, 140,189.76 and 56,264.79

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Solution

The fourth proportional to 101,585.93, 140,189.76 and 56,264.79 is: 77,646.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,585.93 : 140,189.76 = 56,264.79 : x
  2. Step 2: Convert to fraction form
    101,585.93/140,189.76 = 56,264.79/x
  3. Step 3: Cross multiply
    101,585.93x = 140,189.76 × 56,264.79
  4. Step 4: Simplify right side
    101,585.93x = 7,887,747,406.55
  5. Step 5: Solve for x
    x = 7,887,747,406.55/101,585.93
  6. Step 6: Final answer
    x = 77,646.07

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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.