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Finding the Fourth Proportional to 84,248,165.65, 118,287,554.15 and 84,248,165.65

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Solution

The fourth proportional to 84,248,165.65, 118,287,554.15 and 84,248,165.65 is: 118,287,554.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,248,165.65 : 118,287,554.15 = 84,248,165.65 : x
  2. Step 2: Convert to fraction form
    84,248,165.65/118,287,554.15 = 84,248,165.65/x
  3. Step 3: Cross multiply
    84,248,165.65x = 118,287,554.15 × 84,248,165.65
  4. Step 4: Simplify right side
    84,248,165.65x = 9,965,509,456,362,546
  5. Step 5: Solve for x
    x = 9,965,509,456,362,546/84,248,165.65
  6. Step 6: Final answer
    x = 118,287,554.15

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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.