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Finding the Fourth Proportional to 124,011, 171,153.90 and 75,641.04

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Solution

The fourth proportional to 124,011, 171,153.90 and 75,641.04 is: 104,396.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,011 : 171,153.90 = 75,641.04 : x
  2. Step 2: Convert to fraction form
    124,011/171,153.90 = 75,641.04/x
  3. Step 3: Cross multiply
    124,011x = 171,153.90 × 75,641.04
  4. Step 4: Simplify right side
    124,011x = 12,946,258,996.06
  5. Step 5: Solve for x
    x = 12,946,258,996.06/124,011
  6. Step 6: Final answer
    x = 104,396.05

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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.