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Finding the Fourth Proportional to 114,887.64, 158,437.98 and 74,558.28

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Solution

The fourth proportional to 114,887.64, 158,437.98 and 74,558.28 is: 102,821.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,887.64 : 158,437.98 = 74,558.28 : x
  2. Step 2: Convert to fraction form
    114,887.64/158,437.98 = 74,558.28/x
  3. Step 3: Cross multiply
    114,887.64x = 158,437.98 × 74,558.28
  4. Step 4: Simplify right side
    114,887.64x = 11,812,863,275.47
  5. Step 5: Solve for x
    x = 11,812,863,275.47/114,887.64
  6. Step 6: Final answer
    x = 102,821.01

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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.