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Finding the Fourth Proportional to 267,136,543.60, 400,704,815.40 and 221,220,041.20

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Solution

The fourth proportional to 267,136,543.60, 400,704,815.40 and 221,220,041.20 is: 331,830,061.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,136,543.60 : 400,704,815.40 = 221,220,041.20 : x
  2. Step 2: Convert to fraction form
    267,136,543.60/400,704,815.40 = 221,220,041.20/x
  3. Step 3: Cross multiply
    267,136,543.60x = 400,704,815.40 × 221,220,041.20
  4. Step 4: Simplify right side
    267,136,543.60x = 88,643,935,771,826,384
  5. Step 5: Solve for x
    x = 88,643,935,771,826,384/267,136,543.60
  6. Step 6: Final answer
    x = 331,830,061.80

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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.