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Finding the Fourth Proportional to 343,214.40, 514,870.20 and 106,532.40

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Solution

The fourth proportional to 343,214.40, 514,870.20 and 106,532.40 is: 159,813.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,214.40 : 514,870.20 = 106,532.40 : x
  2. Step 2: Convert to fraction form
    343,214.40/514,870.20 = 106,532.40/x
  3. Step 3: Cross multiply
    343,214.40x = 514,870.20 × 106,532.40
  4. Step 4: Simplify right side
    343,214.40x = 54,850,358,094.48
  5. Step 5: Solve for x
    x = 54,850,358,094.48/343,214.40
  6. Step 6: Final answer
    x = 159,813.69

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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.