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Finding the Fourth Proportional to 116,865.99, 161,275.12 and 63,151.01

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Solution

The fourth proportional to 116,865.99, 161,275.12 and 63,151.01 is: 87,148.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,865.99 : 161,275.12 = 63,151.01 : x
  2. Step 2: Convert to fraction form
    116,865.99/161,275.12 = 63,151.01/x
  3. Step 3: Cross multiply
    116,865.99x = 161,275.12 × 63,151.01
  4. Step 4: Simplify right side
    116,865.99x = 10,184,686,356.40
  5. Step 5: Solve for x
    x = 10,184,686,356.40/116,865.99
  6. Step 6: Final answer
    x = 87,148.42

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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.