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Finding the Fourth Proportional to 150,554.64, 207,243.93 and 130,127.40

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Solution

The fourth proportional to 150,554.64, 207,243.93 and 130,127.40 is: 179,125.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,554.64 : 207,243.93 = 130,127.40 : x
  2. Step 2: Convert to fraction form
    150,554.64/207,243.93 = 130,127.40/x
  3. Step 3: Cross multiply
    150,554.64x = 207,243.93 × 130,127.40
  4. Step 4: Simplify right side
    150,554.64x = 26,968,113,776.68
  5. Step 5: Solve for x
    x = 26,968,113,776.68/150,554.64
  6. Step 6: Final answer
    x = 179,125.09

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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.