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Finding the Fourth Proportional to 113,810.62, 157,111.80 and 66,054.74

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Solution

The fourth proportional to 113,810.62, 157,111.80 and 66,054.74 is: 91,186.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,810.62 : 157,111.80 = 66,054.74 : x
  2. Step 2: Convert to fraction form
    113,810.62/157,111.80 = 66,054.74/x
  3. Step 3: Cross multiply
    113,810.62x = 157,111.80 × 66,054.74
  4. Step 4: Simplify right side
    113,810.62x = 10,377,979,321.98
  5. Step 5: Solve for x
    x = 10,377,979,321.98/113,810.62
  6. Step 6: Final answer
    x = 91,186.39

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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.