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Finding the Fourth Proportional to 114,041.61, 157,363.43 and 66,305.61

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Solution

The fourth proportional to 114,041.61, 157,363.43 and 66,305.61 is: 91,493.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,041.61 : 157,363.43 = 66,305.61 : x
  2. Step 2: Convert to fraction form
    114,041.61/157,363.43 = 66,305.61/x
  3. Step 3: Cross multiply
    114,041.61x = 157,363.43 × 66,305.61
  4. Step 4: Simplify right side
    114,041.61x = 10,434,077,886.31
  5. Step 5: Solve for x
    x = 10,434,077,886.31/114,041.61
  6. Step 6: Final answer
    x = 91,493.60

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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.