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Finding the Fourth Proportional to 224,980, 310,478.88 and 124,384.48

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Solution

The fourth proportional to 224,980, 310,478.88 and 124,384.48 is: 171,654.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,980 : 310,478.88 = 124,384.48 : x
  2. Step 2: Convert to fraction form
    224,980/310,478.88 = 124,384.48/x
  3. Step 3: Cross multiply
    224,980x = 310,478.88 × 124,384.48
  4. Step 4: Simplify right side
    224,980x = 38,618,754,039.78
  5. Step 5: Solve for x
    x = 38,618,754,039.78/224,980
  6. Step 6: Final answer
    x = 171,654.16

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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.