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Finding the Fourth Proportional to 52,570,644.60, 78,855,966.90 and 18,487,561.80

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Solution

The fourth proportional to 52,570,644.60, 78,855,966.90 and 18,487,561.80 is: 27,731,342.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,570,644.60 : 78,855,966.90 = 18,487,561.80 : x
  2. Step 2: Convert to fraction form
    52,570,644.60/78,855,966.90 = 18,487,561.80/x
  3. Step 3: Cross multiply
    52,570,644.60x = 78,855,966.90 × 18,487,561.80
  4. Step 4: Simplify right side
    52,570,644.60x = 1,457,854,561,362,504.50
  5. Step 5: Solve for x
    x = 1,457,854,561,362,504.50/52,570,644.60
  6. Step 6: Final answer
    x = 27,731,342.70

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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.