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Finding the Fourth Proportional to 70,873,833.60, 105,922,334.88 and 51,744,873.60

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Solution

The fourth proportional to 70,873,833.60, 105,922,334.88 and 51,744,873.60 is: 77,333,728.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,873,833.60 : 105,922,334.88 = 51,744,873.60 : x
  2. Step 2: Convert to fraction form
    70,873,833.60/105,922,334.88 = 51,744,873.60/x
  3. Step 3: Cross multiply
    70,873,833.60x = 105,922,334.88 × 51,744,873.60
  4. Step 4: Simplify right side
    70,873,833.60x = 5,480,937,829,782,471
  5. Step 5: Solve for x
    x = 5,480,937,829,782,471/70,873,833.60
  6. Step 6: Final answer
    x = 77,333,728.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.