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Finding the Fourth Proportional to 364,041.40, 545,964.90 and 127,359.40

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Solution

The fourth proportional to 364,041.40, 545,964.90 and 127,359.40 is: 191,005.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,041.40 : 545,964.90 = 127,359.40 : x
  2. Step 2: Convert to fraction form
    364,041.40/545,964.90 = 127,359.40/x
  3. Step 3: Cross multiply
    364,041.40x = 545,964.90 × 127,359.40
  4. Step 4: Simplify right side
    364,041.40x = 69,533,762,085.06
  5. Step 5: Solve for x
    x = 69,533,762,085.06/364,041.40
  6. Step 6: Final answer
    x = 191,005.09

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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.