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Finding the Fourth Proportional to 409,681.60, 614,522.40 and 114,193.60

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Solution

The fourth proportional to 409,681.60, 614,522.40 and 114,193.60 is: 171,290.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,681.60 : 614,522.40 = 114,193.60 : x
  2. Step 2: Convert to fraction form
    409,681.60/614,522.40 = 114,193.60/x
  3. Step 3: Cross multiply
    409,681.60x = 614,522.40 × 114,193.60
  4. Step 4: Simplify right side
    409,681.60x = 70,174,525,136.64
  5. Step 5: Solve for x
    x = 70,174,525,136.64/409,681.60
  6. Step 6: Final answer
    x = 171,290.40

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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.