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Finding the Fourth Proportional to 91,088.94, 125,713.71 and 53,363.19

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Solution

The fourth proportional to 91,088.94, 125,713.71 and 53,363.19 is: 73,647.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,088.94 : 125,713.71 = 53,363.19 : x
  2. Step 2: Convert to fraction form
    91,088.94/125,713.71 = 53,363.19/x
  3. Step 3: Cross multiply
    91,088.94x = 125,713.71 × 53,363.19
  4. Step 4: Simplify right side
    91,088.94x = 6,708,484,325.52
  5. Step 5: Solve for x
    x = 6,708,484,325.52/91,088.94
  6. Step 6: Final answer
    x = 73,647.63

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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.