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Finding the Fourth Proportional to 364,294.40, 546,040.65 and 127,515.20

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Solution

The fourth proportional to 364,294.40, 546,040.65 and 127,515.20 is: 191,132.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,294.40 : 546,040.65 = 127,515.20 : x
  2. Step 2: Convert to fraction form
    364,294.40/546,040.65 = 127,515.20/x
  3. Step 3: Cross multiply
    364,294.40x = 546,040.65 × 127,515.20
  4. Step 4: Simplify right side
    364,294.40x = 69,628,482,692.88
  5. Step 5: Solve for x
    x = 69,628,482,692.88/364,294.40
  6. Step 6: Final answer
    x = 191,132.45

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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.