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Finding the Fourth Proportional to 66,737,607.60, 100,106,411.40 and 48,456,037.20

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Solution

The fourth proportional to 66,737,607.60, 100,106,411.40 and 48,456,037.20 is: 72,684,055.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,737,607.60 : 100,106,411.40 = 48,456,037.20 : x
  2. Step 2: Convert to fraction form
    66,737,607.60/100,106,411.40 = 48,456,037.20/x
  3. Step 3: Cross multiply
    66,737,607.60x = 100,106,411.40 × 48,456,037.20
  4. Step 4: Simplify right side
    66,737,607.60x = 4,850,759,994,756,905
  5. Step 5: Solve for x
    x = 4,850,759,994,756,905/66,737,607.60
  6. Step 6: Final answer
    x = 72,684,055.80

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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.