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Finding the Fourth Proportional to 205,563.12, 308,307.01 and 93,216.32

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Solution

The fourth proportional to 205,563.12, 308,307.01 and 93,216.32 is: 139,807.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,563.12 : 308,307.01 = 93,216.32 : x
  2. Step 2: Convert to fraction form
    205,563.12/308,307.01 = 93,216.32/x
  3. Step 3: Cross multiply
    205,563.12x = 308,307.01 × 93,216.32
  4. Step 4: Simplify right side
    205,563.12x = 28,739,244,458.76
  5. Step 5: Solve for x
    x = 28,739,244,458.76/205,563.12
  6. Step 6: Final answer
    x = 139,807.40

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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.