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Finding the Fourth Proportional to 137,386.68, 205,811.70 and 94,684.53

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Solution

The fourth proportional to 137,386.68, 205,811.70 and 94,684.53 is: 141,841.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,386.68 : 205,811.70 = 94,684.53 : x
  2. Step 2: Convert to fraction form
    137,386.68/205,811.70 = 94,684.53/x
  3. Step 3: Cross multiply
    137,386.68x = 205,811.70 × 94,684.53
  4. Step 4: Simplify right side
    137,386.68x = 19,487,184,083.00
  5. Step 5: Solve for x
    x = 19,487,184,083.00/137,386.68
  6. Step 6: Final answer
    x = 141,841.87

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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.