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Finding the Fourth Proportional to 99,690,192.80, 149,555,506.80 and 56,580,048.80

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Solution

The fourth proportional to 99,690,192.80, 149,555,506.80 and 56,580,048.80 is: 84,881,547.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,690,192.80 : 149,555,506.80 = 56,580,048.80 : x
  2. Step 2: Convert to fraction form
    99,690,192.80/149,555,506.80 = 56,580,048.80/x
  3. Step 3: Cross multiply
    99,690,192.80x = 149,555,506.80 × 56,580,048.80
  4. Step 4: Simplify right side
    99,690,192.80x = 8,461,857,873,052,732
  5. Step 5: Solve for x
    x = 8,461,857,873,052,732/99,690,192.80
  6. Step 6: Final answer
    x = 84,881,547.88

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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.