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Finding the Fourth Proportional to 77,802.64, 116,703.96 and 62,146.96

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Solution

The fourth proportional to 77,802.64, 116,703.96 and 62,146.96 is: 93,220.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,802.64 : 116,703.96 = 62,146.96 : x
  2. Step 2: Convert to fraction form
    77,802.64/116,703.96 = 62,146.96/x
  3. Step 3: Cross multiply
    77,802.64x = 116,703.96 × 62,146.96
  4. Step 4: Simplify right side
    77,802.64x = 7,252,796,333.96
  5. Step 5: Solve for x
    x = 7,252,796,333.96/77,802.64
  6. Step 6: Final answer
    x = 93,220.44

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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.