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Finding the Fourth Proportional to 111,551.19, 153,941.79 and 60,564.39

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Solution

The fourth proportional to 111,551.19, 153,941.79 and 60,564.39 is: 83,579.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,551.19 : 153,941.79 = 60,564.39 : x
  2. Step 2: Convert to fraction form
    111,551.19/153,941.79 = 60,564.39/x
  3. Step 3: Cross multiply
    111,551.19x = 153,941.79 × 60,564.39
  4. Step 4: Simplify right side
    111,551.19x = 9,323,390,606.86
  5. Step 5: Solve for x
    x = 9,323,390,606.86/111,551.19
  6. Step 6: Final answer
    x = 83,579.48

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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.