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Finding the Fourth Proportional to 211,547.53, 317,351.04 and 61,798.78

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Solution

The fourth proportional to 211,547.53, 317,351.04 and 61,798.78 is: 92,706.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,547.53 : 317,351.04 = 61,798.78 : x
  2. Step 2: Convert to fraction form
    211,547.53/317,351.04 = 61,798.78/x
  3. Step 3: Cross multiply
    211,547.53x = 317,351.04 × 61,798.78
  4. Step 4: Simplify right side
    211,547.53x = 19,611,907,103.73
  5. Step 5: Solve for x
    x = 19,611,907,103.73/211,547.53
  6. Step 6: Final answer
    x = 92,706.86

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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.