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Finding the Fourth Proportional to 61,678.06, 85,110.14 and 34,815.32

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Solution

The fourth proportional to 61,678.06, 85,110.14 and 34,815.32 is: 48,041.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,678.06 : 85,110.14 = 34,815.32 : x
  2. Step 2: Convert to fraction form
    61,678.06/85,110.14 = 34,815.32/x
  3. Step 3: Cross multiply
    61,678.06x = 85,110.14 × 34,815.32
  4. Step 4: Simplify right side
    61,678.06x = 2,963,136,740.00
  5. Step 5: Solve for x
    x = 2,963,136,740.00/61,678.06
  6. Step 6: Final answer
    x = 48,041.99

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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.