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Finding the Fourth Proportional to 84,576,005.70, 118,151,316.30 and 84,576,005.70

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Solution

The fourth proportional to 84,576,005.70, 118,151,316.30 and 84,576,005.70 is: 118,151,316.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,576,005.70 : 118,151,316.30 = 84,576,005.70 : x
  2. Step 2: Convert to fraction form
    84,576,005.70/118,151,316.30 = 84,576,005.70/x
  3. Step 3: Cross multiply
    84,576,005.70x = 118,151,316.30 × 84,576,005.70
  4. Step 4: Simplify right side
    84,576,005.70x = 9,992,766,400,851,304
  5. Step 5: Solve for x
    x = 9,992,766,400,851,304/84,576,005.70
  6. Step 6: Final answer
    x = 118,151,316.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.