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Finding the Fourth Proportional to 523,688.76, 785,533.76 and 168,755.64

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Solution

The fourth proportional to 523,688.76, 785,533.76 and 168,755.64 is: 253,133.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,688.76 : 785,533.76 = 168,755.64 : x
  2. Step 2: Convert to fraction form
    523,688.76/785,533.76 = 168,755.64/x
  3. Step 3: Cross multiply
    523,688.76x = 785,533.76 × 168,755.64
  4. Step 4: Simplify right side
    523,688.76x = 132,563,252,410.41
  5. Step 5: Solve for x
    x = 132,563,252,410.41/523,688.76
  6. Step 6: Final answer
    x = 253,133.66

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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.