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Finding the Fourth Proportional to 356,754.12, 535,210.06 and 120,089

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Solution

The fourth proportional to 356,754.12, 535,210.06 and 120,089 is: 180,160.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,754.12 : 535,210.06 = 120,089 : x
  2. Step 2: Convert to fraction form
    356,754.12/535,210.06 = 120,089/x
  3. Step 3: Cross multiply
    356,754.12x = 535,210.06 × 120,089
  4. Step 4: Simplify right side
    356,754.12x = 64,272,840,895.34
  5. Step 5: Solve for x
    x = 64,272,840,895.34/356,754.12
  6. Step 6: Final answer
    x = 180,160.05

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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.