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Finding the Fourth Proportional to 140,568.55, 210,829.33 and 61,661.59

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Solution

The fourth proportional to 140,568.55, 210,829.33 and 61,661.59 is: 92,482.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,568.55 : 210,829.33 = 61,661.59 : x
  2. Step 2: Convert to fraction form
    140,568.55/210,829.33 = 61,661.59/x
  3. Step 3: Cross multiply
    140,568.55x = 210,829.33 × 61,661.59
  4. Step 4: Simplify right side
    140,568.55x = 13,000,071,256.44
  5. Step 5: Solve for x
    x = 13,000,071,256.44/140,568.55
  6. Step 6: Final answer
    x = 92,482.08

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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.