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Finding the Fourth Proportional to 364,292.40, 546,037.65 and 127,513.20

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Solution

The fourth proportional to 364,292.40, 546,037.65 and 127,513.20 is: 191,129.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,292.40 : 546,037.65 = 127,513.20 : x
  2. Step 2: Convert to fraction form
    364,292.40/546,037.65 = 127,513.20/x
  3. Step 3: Cross multiply
    364,292.40x = 546,037.65 × 127,513.20
  4. Step 4: Simplify right side
    364,292.40x = 69,627,008,071.98
  5. Step 5: Solve for x
    x = 69,627,008,071.98/364,292.40
  6. Step 6: Final answer
    x = 191,129.46

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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.