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Finding the Fourth Proportional to 163,130.55, 224,881.87 and 115,299.51

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Solution

The fourth proportional to 163,130.55, 224,881.87 and 115,299.51 is: 158,944.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,130.55 : 224,881.87 = 115,299.51 : x
  2. Step 2: Convert to fraction form
    163,130.55/224,881.87 = 115,299.51/x
  3. Step 3: Cross multiply
    163,130.55x = 224,881.87 × 115,299.51
  4. Step 4: Simplify right side
    163,130.55x = 25,928,769,981.09
  5. Step 5: Solve for x
    x = 25,928,769,981.09/163,130.55
  6. Step 6: Final answer
    x = 158,944.90

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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.