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Finding the Fourth Proportional to 93,851.88, 129,515.55 and 51,410.40

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Solution

The fourth proportional to 93,851.88, 129,515.55 and 51,410.40 is: 70,946.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,851.88 : 129,515.55 = 51,410.40 : x
  2. Step 2: Convert to fraction form
    93,851.88/129,515.55 = 51,410.40/x
  3. Step 3: Cross multiply
    93,851.88x = 129,515.55 × 51,410.40
  4. Step 4: Simplify right side
    93,851.88x = 6,658,446,231.72
  5. Step 5: Solve for x
    x = 6,658,446,231.72/93,851.88
  6. Step 6: Final answer
    x = 70,946.33

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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.