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Finding the Fourth Proportional to 103,627.90, 154,685.26 and 88,931.26

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Solution

The fourth proportional to 103,627.90, 154,685.26 and 88,931.26 is: 132,747.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,627.90 : 154,685.26 = 88,931.26 : x
  2. Step 2: Convert to fraction form
    103,627.90/154,685.26 = 88,931.26/x
  3. Step 3: Cross multiply
    103,627.90x = 154,685.26 × 88,931.26
  4. Step 4: Simplify right side
    103,627.90x = 13,756,355,075.23
  5. Step 5: Solve for x
    x = 13,756,355,075.23/103,627.90
  6. Step 6: Final answer
    x = 132,747.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.