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Finding the Fourth Proportional to 211,701.74, 317,482.14 and 61,950.56

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Solution

The fourth proportional to 211,701.74, 317,482.14 and 61,950.56 is: 92,905.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,701.74 : 317,482.14 = 61,950.56 : x
  2. Step 2: Convert to fraction form
    211,701.74/317,482.14 = 61,950.56/x
  3. Step 3: Cross multiply
    211,701.74x = 317,482.14 × 61,950.56
  4. Step 4: Simplify right side
    211,701.74x = 19,668,196,363.00
  5. Step 5: Solve for x
    x = 19,668,196,363.00/211,701.74
  6. Step 6: Final answer
    x = 92,905.22

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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.