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Finding the Fourth Proportional to 224,798.54, 310,218.35 and 122,821.81

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Solution

The fourth proportional to 224,798.54, 310,218.35 and 122,821.81 is: 169,492.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,798.54 : 310,218.35 = 122,821.81 : x
  2. Step 2: Convert to fraction form
    224,798.54/310,218.35 = 122,821.81/x
  3. Step 3: Cross multiply
    224,798.54x = 310,218.35 × 122,821.81
  4. Step 4: Simplify right side
    224,798.54x = 38,101,579,242.21
  5. Step 5: Solve for x
    x = 38,101,579,242.21/224,798.54
  6. Step 6: Final answer
    x = 169,492.11

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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.