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Finding the Fourth Proportional to 625,046,843.55, 937,569,772.80 and 188,347,532.84

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Solution

The fourth proportional to 625,046,843.55, 937,569,772.80 and 188,347,532.84 is: 282,521,150.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,046,843.55 : 937,569,772.80 = 188,347,532.84 : x
  2. Step 2: Convert to fraction form
    625,046,843.55/937,569,772.80 = 188,347,532.84/x
  3. Step 3: Cross multiply
    625,046,843.55x = 937,569,772.80 × 188,347,532.84
  4. Step 4: Simplify right side
    625,046,843.55x = 176,588,953,572,239,328
  5. Step 5: Solve for x
    x = 176,588,953,572,239,328/625,046,843.55
  6. Step 6: Final answer
    x = 282,521,150.85

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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.