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Finding the Fourth Proportional to 99,588.66, 137,430.58 and 54,266.96

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Solution

The fourth proportional to 99,588.66, 137,430.58 and 54,266.96 is: 74,887.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,588.66 : 137,430.58 = 54,266.96 : x
  2. Step 2: Convert to fraction form
    99,588.66/137,430.58 = 54,266.96/x
  3. Step 3: Cross multiply
    99,588.66x = 137,430.58 × 54,266.96
  4. Step 4: Simplify right side
    99,588.66x = 7,457,939,787.64
  5. Step 5: Solve for x
    x = 7,457,939,787.64/99,588.66
  6. Step 6: Final answer
    x = 74,887.44

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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.