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Finding the Fourth Proportional to 268,018.77, 370,038.99 and 166,153.11

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Solution

The fourth proportional to 268,018.77, 370,038.99 and 166,153.11 is: 229,398.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,018.77 : 370,038.99 = 166,153.11 : x
  2. Step 2: Convert to fraction form
    268,018.77/370,038.99 = 166,153.11/x
  3. Step 3: Cross multiply
    268,018.77x = 370,038.99 × 166,153.11
  4. Step 4: Simplify right side
    268,018.77x = 61,483,129,009.76
  5. Step 5: Solve for x
    x = 61,483,129,009.76/268,018.77
  6. Step 6: Final answer
    x = 229,398.59

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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.