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Finding the Fourth Proportional to 124,627.75, 171,980.31 and 70,907.74

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Solution

The fourth proportional to 124,627.75, 171,980.31 and 70,907.74 is: 97,849.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,627.75 : 171,980.31 = 70,907.74 : x
  2. Step 2: Convert to fraction form
    124,627.75/171,980.31 = 70,907.74/x
  3. Step 3: Cross multiply
    124,627.75x = 171,980.31 × 70,907.74
  4. Step 4: Simplify right side
    124,627.75x = 12,194,734,942.55
  5. Step 5: Solve for x
    x = 12,194,734,942.55/124,627.75
  6. Step 6: Final answer
    x = 97,849.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.