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Finding the Fourth Proportional to 114,181.64, 157,623.54 and 66,417.56

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Solution

The fourth proportional to 114,181.64, 157,623.54 and 66,417.56 is: 91,686.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,181.64 : 157,623.54 = 66,417.56 : x
  2. Step 2: Convert to fraction form
    114,181.64/157,623.54 = 66,417.56/x
  3. Step 3: Cross multiply
    114,181.64x = 157,623.54 × 66,417.56
  4. Step 4: Simplify right side
    114,181.64x = 10,468,970,925.36
  5. Step 5: Solve for x
    x = 10,468,970,925.36/114,181.64
  6. Step 6: Final answer
    x = 91,686.99

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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.