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Finding the Fourth Proportional to 170,320.61, 235,024.83 and 104,899.01

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Solution

The fourth proportional to 170,320.61, 235,024.83 and 104,899.01 is: 144,749.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,320.61 : 235,024.83 = 104,899.01 : x
  2. Step 2: Convert to fraction form
    170,320.61/235,024.83 = 104,899.01/x
  3. Step 3: Cross multiply
    170,320.61x = 235,024.83 × 104,899.01
  4. Step 4: Simplify right side
    170,320.61x = 24,653,871,992.42
  5. Step 5: Solve for x
    x = 24,653,871,992.42/170,320.61
  6. Step 6: Final answer
    x = 144,749.79

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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.