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Finding the Fourth Proportional to 201,445.26, 302,106 and 66,484.47

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Solution

The fourth proportional to 201,445.26, 302,106 and 66,484.47 is: 99,706.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,445.26 : 302,106 = 66,484.47 : x
  2. Step 2: Convert to fraction form
    201,445.26/302,106 = 66,484.47/x
  3. Step 3: Cross multiply
    201,445.26x = 302,106 × 66,484.47
  4. Step 4: Simplify right side
    201,445.26x = 20,085,357,293.82
  5. Step 5: Solve for x
    x = 20,085,357,293.82/201,445.26
  6. Step 6: Final answer
    x = 99,706.28

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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.