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Finding the Fourth Proportional to 236,554.61, 354,700.64 and 78,696.89

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Solution

The fourth proportional to 236,554.61, 354,700.64 and 78,696.89 is: 118,001.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,554.61 : 354,700.64 = 78,696.89 : x
  2. Step 2: Convert to fraction form
    236,554.61/354,700.64 = 78,696.89/x
  3. Step 3: Cross multiply
    236,554.61x = 354,700.64 × 78,696.89
  4. Step 4: Simplify right side
    236,554.61x = 27,913,836,855.53
  5. Step 5: Solve for x
    x = 27,913,836,855.53/236,554.61
  6. Step 6: Final answer
    x = 118,001.66

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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.