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Finding the Fourth Proportional to 575,940.87, 864,077.13 and 176,640.21

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Solution

The fourth proportional to 575,940.87, 864,077.13 and 176,640.21 is: 265,011.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,940.87 : 864,077.13 = 176,640.21 : x
  2. Step 2: Convert to fraction form
    575,940.87/864,077.13 = 176,640.21/x
  3. Step 3: Cross multiply
    575,940.87x = 864,077.13 × 176,640.21
  4. Step 4: Simplify right side
    575,940.87x = 152,630,765,699.40
  5. Step 5: Solve for x
    x = 152,630,765,699.40/575,940.87
  6. Step 6: Final answer
    x = 265,011.17

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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.