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Finding the Fourth Proportional to 113,907.50, 157,192.66 and 62,919.32

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Solution

The fourth proportional to 113,907.50, 157,192.66 and 62,919.32 is: 86,828.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,907.50 : 157,192.66 = 62,919.32 : x
  2. Step 2: Convert to fraction form
    113,907.50/157,192.66 = 62,919.32/x
  3. Step 3: Cross multiply
    113,907.50x = 157,192.66 × 62,919.32
  4. Step 4: Simplify right side
    113,907.50x = 9,890,455,276.19
  5. Step 5: Solve for x
    x = 9,890,455,276.19/113,907.50
  6. Step 6: Final answer
    x = 86,828.83

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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.