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Finding the Fourth Proportional to 114,777.64, 158,384.88 and 71,776.43

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Solution

The fourth proportional to 114,777.64, 158,384.88 and 71,776.43 is: 99,046.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,777.64 : 158,384.88 = 71,776.43 : x
  2. Step 2: Convert to fraction form
    114,777.64/158,384.88 = 71,776.43/x
  3. Step 3: Cross multiply
    114,777.64x = 158,384.88 × 71,776.43
  4. Step 4: Simplify right side
    114,777.64x = 11,368,300,460.45
  5. Step 5: Solve for x
    x = 11,368,300,460.45/114,777.64
  6. Step 6: Final answer
    x = 99,046.30

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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.