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Finding the Fourth Proportional to 70,456.99, 97,120.20 and 53,392.93

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Solution

The fourth proportional to 70,456.99, 97,120.20 and 53,392.93 is: 73,598.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,456.99 : 97,120.20 = 53,392.93 : x
  2. Step 2: Convert to fraction form
    70,456.99/97,120.20 = 53,392.93/x
  3. Step 3: Cross multiply
    70,456.99x = 97,120.20 × 53,392.93
  4. Step 4: Simplify right side
    70,456.99x = 5,185,531,554.59
  5. Step 5: Solve for x
    x = 5,185,531,554.59/70,456.99
  6. Step 6: Final answer
    x = 73,598.54

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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.