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Finding the Fourth Proportional to 211,573.59, 317,361.56 and 53,802.15

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Solution

The fourth proportional to 211,573.59, 317,361.56 and 53,802.15 is: 80,703.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,573.59 : 317,361.56 = 53,802.15 : x
  2. Step 2: Convert to fraction form
    211,573.59/317,361.56 = 53,802.15/x
  3. Step 3: Cross multiply
    211,573.59x = 317,361.56 × 53,802.15
  4. Step 4: Simplify right side
    211,573.59x = 17,074,733,986.34
  5. Step 5: Solve for x
    x = 17,074,733,986.34/211,573.59
  6. Step 6: Final answer
    x = 80,703.52

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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.