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Finding the Fourth Proportional to 104,396.65, 144,070.57 and 61,368.25

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Solution

The fourth proportional to 104,396.65, 144,070.57 and 61,368.25 is: 84,690.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,396.65 : 144,070.57 = 61,368.25 : x
  2. Step 2: Convert to fraction form
    104,396.65/144,070.57 = 61,368.25/x
  3. Step 3: Cross multiply
    104,396.65x = 144,070.57 × 61,368.25
  4. Step 4: Simplify right side
    104,396.65x = 8,841,358,757.40
  5. Step 5: Solve for x
    x = 8,841,358,757.40/104,396.65
  6. Step 6: Final answer
    x = 84,690.06

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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.