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Finding the Fourth Proportional to 108,798.49, 150,156.84 and 61,054.66

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Solution

The fourth proportional to 108,798.49, 150,156.84 and 61,054.66 is: 84,263.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,798.49 : 150,156.84 = 61,054.66 : x
  2. Step 2: Convert to fraction form
    108,798.49/150,156.84 = 61,054.66/x
  3. Step 3: Cross multiply
    108,798.49x = 150,156.84 × 61,054.66
  4. Step 4: Simplify right side
    108,798.49x = 9,167,774,812.87
  5. Step 5: Solve for x
    x = 9,167,774,812.87/108,798.49
  6. Step 6: Final answer
    x = 84,263.81

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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.