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Finding the Fourth Proportional to 136,700.56, 205,239.71 and 94,476.61

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Solution

The fourth proportional to 136,700.56, 205,239.71 and 94,476.61 is: 141,845.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,700.56 : 205,239.71 = 94,476.61 : x
  2. Step 2: Convert to fraction form
    136,700.56/205,239.71 = 94,476.61/x
  3. Step 3: Cross multiply
    136,700.56x = 205,239.71 × 94,476.61
  4. Step 4: Simplify right side
    136,700.56x = 19,390,352,038.18
  5. Step 5: Solve for x
    x = 19,390,352,038.18/136,700.56
  6. Step 6: Final answer
    x = 141,845.45

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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.