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Finding the Fourth Proportional to 64,361,721.40, 88,806,468.78 and 36,105,033.40

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Solution

The fourth proportional to 64,361,721.40, 88,806,468.78 and 36,105,033.40 is: 49,817,817.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,361,721.40 : 88,806,468.78 = 36,105,033.40 : x
  2. Step 2: Convert to fraction form
    64,361,721.40/88,806,468.78 = 36,105,033.40/x
  3. Step 3: Cross multiply
    64,361,721.40x = 88,806,468.78 × 36,105,033.40
  4. Step 4: Simplify right side
    64,361,721.40x = 3,206,360,521,437,957
  5. Step 5: Solve for x
    x = 3,206,360,521,437,957/64,361,721.40
  6. Step 6: Final answer
    x = 49,817,817.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.