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Finding the Fourth Proportional to 349,344.40, 524,127.39 and 124,699.90

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Solution

The fourth proportional to 349,344.40, 524,127.39 and 124,699.90 is: 187,089.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,344.40 : 524,127.39 = 124,699.90 : x
  2. Step 2: Convert to fraction form
    349,344.40/524,127.39 = 124,699.90/x
  3. Step 3: Cross multiply
    349,344.40x = 524,127.39 × 124,699.90
  4. Step 4: Simplify right side
    349,344.40x = 65,358,633,120.26
  5. Step 5: Solve for x
    x = 65,358,633,120.26/349,344.40
  6. Step 6: Final answer
    x = 187,089.40

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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.