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Finding the Fourth Proportional to 113,303.60, 169,955.40 and 54,254.60

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Solution

The fourth proportional to 113,303.60, 169,955.40 and 54,254.60 is: 81,381.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,303.60 : 169,955.40 = 54,254.60 : x
  2. Step 2: Convert to fraction form
    113,303.60/169,955.40 = 54,254.60/x
  3. Step 3: Cross multiply
    113,303.60x = 169,955.40 × 54,254.60
  4. Step 4: Simplify right side
    113,303.60x = 9,220,862,244.84
  5. Step 5: Solve for x
    x = 9,220,862,244.84/113,303.60
  6. Step 6: Final answer
    x = 81,381.90

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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.