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Finding the Fourth Proportional to 189,066.61, 283,519.72 and 70,655.14

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Solution

The fourth proportional to 189,066.61, 283,519.72 and 70,655.14 is: 105,952.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,066.61 : 283,519.72 = 70,655.14 : x
  2. Step 2: Convert to fraction form
    189,066.61/283,519.72 = 70,655.14/x
  3. Step 3: Cross multiply
    189,066.61x = 283,519.72 × 70,655.14
  4. Step 4: Simplify right side
    189,066.61x = 20,032,125,509.36
  5. Step 5: Solve for x
    x = 20,032,125,509.36/189,066.61
  6. Step 6: Final answer
    x = 105,952.74

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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.