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Finding the Fourth Proportional to 369,157.54, 553,767.57 and 102,918.31

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Solution

The fourth proportional to 369,157.54, 553,767.57 and 102,918.31 is: 154,386.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,157.54 : 553,767.57 = 102,918.31 : x
  2. Step 2: Convert to fraction form
    369,157.54/553,767.57 = 102,918.31/x
  3. Step 3: Cross multiply
    369,157.54x = 553,767.57 × 102,918.31
  4. Step 4: Simplify right side
    369,157.54x = 56,992,822,179.91
  5. Step 5: Solve for x
    x = 56,992,822,179.91/369,157.54
  6. Step 6: Final answer
    x = 154,386.18

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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.