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Finding the Fourth Proportional to 116,802.89, 161,184.63 and 65,814.69

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Solution

The fourth proportional to 116,802.89, 161,184.63 and 65,814.69 is: 90,822.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,802.89 : 161,184.63 = 65,814.69 : x
  2. Step 2: Convert to fraction form
    116,802.89/161,184.63 = 65,814.69/x
  3. Step 3: Cross multiply
    116,802.89x = 161,184.63 × 65,814.69
  4. Step 4: Simplify right side
    116,802.89x = 10,608,316,627.46
  5. Step 5: Solve for x
    x = 10,608,316,627.46/116,802.89
  6. Step 6: Final answer
    x = 90,822.38

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1.5x scale

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.