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Finding the Fourth Proportional to 145,853.47, 218,780.22 and 35,045.47

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Solution

The fourth proportional to 145,853.47, 218,780.22 and 35,045.47 is: 52,568.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,853.47 : 218,780.22 = 35,045.47 : x
  2. Step 2: Convert to fraction form
    145,853.47/218,780.22 = 35,045.47/x
  3. Step 3: Cross multiply
    145,853.47x = 218,780.22 × 35,045.47
  4. Step 4: Simplify right side
    145,853.47x = 7,667,255,636.60
  5. Step 5: Solve for x
    x = 7,667,255,636.60/145,853.47
  6. Step 6: Final answer
    x = 52,568.21

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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.