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Finding the Fourth Proportional to 356,717.79, 535,159.06 and 120,054.69

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Solution

The fourth proportional to 356,717.79, 535,159.06 and 120,054.69 is: 180,109.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,717.79 : 535,159.06 = 120,054.69 : x
  2. Step 2: Convert to fraction form
    356,717.79/535,159.06 = 120,054.69/x
  3. Step 3: Cross multiply
    356,717.79x = 535,159.06 × 120,054.69
  4. Step 4: Simplify right side
    356,717.79x = 64,248,354,748.85
  5. Step 5: Solve for x
    x = 64,248,354,748.85/356,717.79
  6. Step 6: Final answer
    x = 180,109.76

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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.