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Finding the Fourth Proportional to 294,545.40, 441,818.10 and 72,929.40

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Solution

The fourth proportional to 294,545.40, 441,818.10 and 72,929.40 is: 109,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,545.40 : 441,818.10 = 72,929.40 : x
  2. Step 2: Convert to fraction form
    294,545.40/441,818.10 = 72,929.40/x
  3. Step 3: Cross multiply
    294,545.40x = 441,818.10 × 72,929.40
  4. Step 4: Simplify right side
    294,545.40x = 32,221,528,942.14
  5. Step 5: Solve for x
    x = 32,221,528,942.14/294,545.40
  6. Step 6: Final answer
    x = 109,394.10

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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.