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Finding the Fourth Proportional to 225,348.71, 310,980.69 and 134,700.28

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Solution

The fourth proportional to 225,348.71, 310,980.69 and 134,700.28 is: 185,886.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,348.71 : 310,980.69 = 134,700.28 : x
  2. Step 2: Convert to fraction form
    225,348.71/310,980.69 = 134,700.28/x
  3. Step 3: Cross multiply
    225,348.71x = 310,980.69 × 134,700.28
  4. Step 4: Simplify right side
    225,348.71x = 41,889,186,017.59
  5. Step 5: Solve for x
    x = 41,889,186,017.59/225,348.71
  6. Step 6: Final answer
    x = 185,886.07

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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.