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Finding the Fourth Proportional to 265,074.64, 397,526.10 and 87,538.84

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Solution

The fourth proportional to 265,074.64, 397,526.10 and 87,538.84 is: 131,279.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,074.64 : 397,526.10 = 87,538.84 : x
  2. Step 2: Convert to fraction form
    265,074.64/397,526.10 = 87,538.84/x
  3. Step 3: Cross multiply
    265,074.64x = 397,526.10 × 87,538.84
  4. Step 4: Simplify right side
    265,074.64x = 34,798,973,663.72
  5. Step 5: Solve for x
    x = 34,798,973,663.72/265,074.64
  6. Step 6: Final answer
    x = 131,279.91

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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.