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Finding the Fourth Proportional to 113,880.72, 170,803.56 and 37,980.59

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Solution

The fourth proportional to 113,880.72, 170,803.56 and 37,980.59 is: 56,965.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,880.72 : 170,803.56 = 37,980.59 : x
  2. Step 2: Convert to fraction form
    113,880.72/170,803.56 = 37,980.59/x
  3. Step 3: Cross multiply
    113,880.72x = 170,803.56 × 37,980.59
  4. Step 4: Simplify right side
    113,880.72x = 6,487,220,409.91
  5. Step 5: Solve for x
    x = 6,487,220,409.91/113,880.72
  6. Step 6: Final answer
    x = 56,965.05

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1.5x scale

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.