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Finding the Fourth Proportional to 237,816.71, 328,190.28 and 130,386.51

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Solution

The fourth proportional to 237,816.71, 328,190.28 and 130,386.51 is: 179,935.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,816.71 : 328,190.28 = 130,386.51 : x
  2. Step 2: Convert to fraction form
    237,816.71/328,190.28 = 130,386.51/x
  3. Step 3: Cross multiply
    237,816.71x = 328,190.28 × 130,386.51
  4. Step 4: Simplify right side
    237,816.71x = 42,791,585,469.60
  5. Step 5: Solve for x
    x = 42,791,585,469.60/237,816.71
  6. Step 6: Final answer
    x = 179,935.15

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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.