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Finding the Fourth Proportional to 94,181.76, 129,962.16 and 53,888.40

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Solution

The fourth proportional to 94,181.76, 129,962.16 and 53,888.40 is: 74,361.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,181.76 : 129,962.16 = 53,888.40 : x
  2. Step 2: Convert to fraction form
    94,181.76/129,962.16 = 53,888.40/x
  3. Step 3: Cross multiply
    94,181.76x = 129,962.16 × 53,888.40
  4. Step 4: Simplify right side
    94,181.76x = 7,003,452,862.94
  5. Step 5: Solve for x
    x = 7,003,452,862.94/94,181.76
  6. Step 6: Final answer
    x = 74,361.03

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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.