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Finding the Fourth Proportional to 96,671,998.80, 145,007,998.20 and 53,673,829.20

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Solution

The fourth proportional to 96,671,998.80, 145,007,998.20 and 53,673,829.20 is: 80,510,743.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,671,998.80 : 145,007,998.20 = 53,673,829.20 : x
  2. Step 2: Convert to fraction form
    96,671,998.80/145,007,998.20 = 53,673,829.20/x
  3. Step 3: Cross multiply
    96,671,998.80x = 145,007,998.20 × 53,673,829.20
  4. Step 4: Simplify right side
    96,671,998.80x = 7,783,134,528,020,707
  5. Step 5: Solve for x
    x = 7,783,134,528,020,707/96,671,998.80
  6. Step 6: Final answer
    x = 80,510,743.80

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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.