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Finding the Fourth Proportional to 104,250.84, 143,862.66 and 61,784.16

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Solution

The fourth proportional to 104,250.84, 143,862.66 and 61,784.16 is: 85,260.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,250.84 : 143,862.66 = 61,784.16 : x
  2. Step 2: Convert to fraction form
    104,250.84/143,862.66 = 61,784.16/x
  3. Step 3: Cross multiply
    104,250.84x = 143,862.66 × 61,784.16
  4. Step 4: Simplify right side
    104,250.84x = 8,888,433,603.47
  5. Step 5: Solve for x
    x = 8,888,433,603.47/104,250.84
  6. Step 6: Final answer
    x = 85,260.07

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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.