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Finding the Fourth Proportional to 447,312.78, 670,827.02 and 147,737.52

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Solution

The fourth proportional to 447,312.78, 670,827.02 and 147,737.52 is: 221,559.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,312.78 : 670,827.02 = 147,737.52 : x
  2. Step 2: Convert to fraction form
    447,312.78/670,827.02 = 147,737.52/x
  3. Step 3: Cross multiply
    447,312.78x = 670,827.02 × 147,737.52
  4. Step 4: Simplify right side
    447,312.78x = 99,106,319,545.10
  5. Step 5: Solve for x
    x = 99,106,319,545.10/447,312.78
  6. Step 6: Final answer
    x = 221,559.33

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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.