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Finding the Fourth Proportional to 103,486.76, 142,811.39 and 60,463.00

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Solution

The fourth proportional to 103,486.76, 142,811.39 and 60,463.00 is: 83,438.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,486.76 : 142,811.39 = 60,463.00 : x
  2. Step 2: Convert to fraction form
    103,486.76/142,811.39 = 60,463.00/x
  3. Step 3: Cross multiply
    103,486.76x = 142,811.39 × 60,463.00
  4. Step 4: Simplify right side
    103,486.76x = 8,634,804,867.70
  5. Step 5: Solve for x
    x = 8,634,804,867.70/103,486.76
  6. Step 6: Final answer
    x = 83,438.74

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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.