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Finding the Fourth Proportional to 170,130.16, 234,871.68 and 119,298.88

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Solution

The fourth proportional to 170,130.16, 234,871.68 and 119,298.88 is: 164,697.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,130.16 : 234,871.68 = 119,298.88 : x
  2. Step 2: Convert to fraction form
    170,130.16/234,871.68 = 119,298.88/x
  3. Step 3: Cross multiply
    170,130.16x = 234,871.68 × 119,298.88
  4. Step 4: Simplify right side
    170,130.16x = 28,019,928,367.72
  5. Step 5: Solve for x
    x = 28,019,928,367.72/170,130.16
  6. Step 6: Final answer
    x = 164,697.01

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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.