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Finding the Fourth Proportional to 114,805.16, 158,431 and 63,816.32

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Solution

The fourth proportional to 114,805.16, 158,431 and 63,816.32 is: 88,066.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,805.16 : 158,431 = 63,816.32 : x
  2. Step 2: Convert to fraction form
    114,805.16/158,431 = 63,816.32/x
  3. Step 3: Cross multiply
    114,805.16x = 158,431 × 63,816.32
  4. Step 4: Simplify right side
    114,805.16x = 10,110,483,393.92
  5. Step 5: Solve for x
    x = 10,110,483,393.92/114,805.16
  6. Step 6: Final answer
    x = 88,066.45

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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.