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Finding the Fourth Proportional to 93,570.60, 129,125.88 and 51,128.22

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Solution

The fourth proportional to 93,570.60, 129,125.88 and 51,128.22 is: 70,556.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,570.60 : 129,125.88 = 51,128.22 : x
  2. Step 2: Convert to fraction form
    93,570.60/129,125.88 = 51,128.22/x
  3. Step 3: Cross multiply
    93,570.60x = 129,125.88 × 51,128.22
  4. Step 4: Simplify right side
    93,570.60x = 6,601,976,400.33
  5. Step 5: Solve for x
    x = 6,601,976,400.33/93,570.60
  6. Step 6: Final answer
    x = 70,556.10

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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.