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Finding the Fourth Proportional to 253,074.19, 349,225.74 and 145,626.88

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Solution

The fourth proportional to 253,074.19, 349,225.74 and 145,626.88 is: 200,955.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,074.19 : 349,225.74 = 145,626.88 : x
  2. Step 2: Convert to fraction form
    253,074.19/349,225.74 = 145,626.88/x
  3. Step 3: Cross multiply
    253,074.19x = 349,225.74 × 145,626.88
  4. Step 4: Simplify right side
    253,074.19x = 50,856,654,931.89
  5. Step 5: Solve for x
    x = 50,856,654,931.89/253,074.19
  6. Step 6: Final answer
    x = 200,955.52

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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.