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Finding the Fourth Proportional to 340,610.16, 510,929.27 and 127,356.50

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Solution

The fourth proportional to 340,610.16, 510,929.27 and 127,356.50 is: 191,040.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,610.16 : 510,929.27 = 127,356.50 : x
  2. Step 2: Convert to fraction form
    340,610.16/510,929.27 = 127,356.50/x
  3. Step 3: Cross multiply
    340,610.16x = 510,929.27 × 127,356.50
  4. Step 4: Simplify right side
    340,610.16x = 65,070,164,692.88
  5. Step 5: Solve for x
    x = 65,070,164,692.88/340,610.16
  6. Step 6: Final answer
    x = 191,040.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.