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Finding the Fourth Proportional to 157,796.99, 217,703.78 and 93,252.55

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Solution

The fourth proportional to 157,796.99, 217,703.78 and 93,252.55 is: 128,655.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,796.99 : 217,703.78 = 93,252.55 : x
  2. Step 2: Convert to fraction form
    157,796.99/217,703.78 = 93,252.55/x
  3. Step 3: Cross multiply
    157,796.99x = 217,703.78 × 93,252.55
  4. Step 4: Simplify right side
    157,796.99x = 20,301,432,114.74
  5. Step 5: Solve for x
    x = 20,301,432,114.74/157,796.99
  6. Step 6: Final answer
    x = 128,655.38

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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.