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Finding the Fourth Proportional to 74,733,901.60, 112,100,852.40 and 45,886,496.80

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Solution

The fourth proportional to 74,733,901.60, 112,100,852.40 and 45,886,496.80 is: 68,829,745.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,733,901.60 : 112,100,852.40 = 45,886,496.80 : x
  2. Step 2: Convert to fraction form
    74,733,901.60/112,100,852.40 = 45,886,496.80/x
  3. Step 3: Cross multiply
    74,733,901.60x = 112,100,852.40 × 45,886,496.80
  4. Step 4: Simplify right side
    74,733,901.60x = 5,143,915,404,929,872
  5. Step 5: Solve for x
    x = 5,143,915,404,929,872/74,733,901.60
  6. Step 6: Final answer
    x = 68,829,745.20

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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.