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Finding the Fourth Proportional to 363,840,586.40, 545,760,879.60 and 105,064,248.80

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Solution

The fourth proportional to 363,840,586.40, 545,760,879.60 and 105,064,248.80 is: 157,596,373.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,840,586.40 : 545,760,879.60 = 105,064,248.80 : x
  2. Step 2: Convert to fraction form
    363,840,586.40/545,760,879.60 = 105,064,248.80/x
  3. Step 3: Cross multiply
    363,840,586.40x = 545,760,879.60 × 105,064,248.80
  4. Step 4: Simplify right side
    363,840,586.40x = 57,339,956,839,601,248
  5. Step 5: Solve for x
    x = 57,339,956,839,601,248/363,840,586.40
  6. Step 6: Final answer
    x = 157,596,373.20

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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.