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Finding the Fourth Proportional to 61,068.74, 91,602.39 and 34,416.74

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Solution

The fourth proportional to 61,068.74, 91,602.39 and 34,416.74 is: 51,624.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,068.74 : 91,602.39 = 34,416.74 : x
  2. Step 2: Convert to fraction form
    61,068.74/91,602.39 = 34,416.74/x
  3. Step 3: Cross multiply
    61,068.74x = 91,602.39 × 34,416.74
  4. Step 4: Simplify right side
    61,068.74x = 3,152,655,640.01
  5. Step 5: Solve for x
    x = 3,152,655,640.01/61,068.74
  6. Step 6: Final answer
    x = 51,624.70

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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.