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Finding the Fourth Proportional to 163,368,234.18, 225,448,210.04 and 89,028,815.04

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Solution

The fourth proportional to 163,368,234.18, 225,448,210.04 and 89,028,815.04 is: 122,859,790.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,368,234.18 : 225,448,210.04 = 89,028,815.04 : x
  2. Step 2: Convert to fraction form
    163,368,234.18/225,448,210.04 = 89,028,815.04/x
  3. Step 3: Cross multiply
    163,368,234.18x = 225,448,210.04 × 89,028,815.04
  4. Step 4: Simplify right side
    163,368,234.18x = 20,071,386,992,305,088
  5. Step 5: Solve for x
    x = 20,071,386,992,305,088/163,368,234.18
  6. Step 6: Final answer
    x = 122,859,790.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.