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Finding the Fourth Proportional to 113,881.14, 157,164.84 and 83,804.76

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Solution

The fourth proportional to 113,881.14, 157,164.84 and 83,804.76 is: 115,657.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,881.14 : 157,164.84 = 83,804.76 : x
  2. Step 2: Convert to fraction form
    113,881.14/157,164.84 = 83,804.76/x
  3. Step 3: Cross multiply
    113,881.14x = 157,164.84 × 83,804.76
  4. Step 4: Simplify right side
    113,881.14x = 13,171,161,696.64
  5. Step 5: Solve for x
    x = 13,171,161,696.64/113,881.14
  6. Step 6: Final answer
    x = 115,657.09

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1.5x scale

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.