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Finding the Fourth Proportional to 141,607.69, 212,412.10 and 57,369.45

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Solution

The fourth proportional to 141,607.69, 212,412.10 and 57,369.45 is: 86,054.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,607.69 : 212,412.10 = 57,369.45 : x
  2. Step 2: Convert to fraction form
    141,607.69/212,412.10 = 57,369.45/x
  3. Step 3: Cross multiply
    141,607.69x = 212,412.10 × 57,369.45
  4. Step 4: Simplify right side
    141,607.69x = 12,185,965,350.35
  5. Step 5: Solve for x
    x = 12,185,965,350.35/141,607.69
  6. Step 6: Final answer
    x = 86,054.40

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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.