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Finding the Fourth Proportional to 114,017.16, 157,344.66 and 63,719.40

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Solution

The fourth proportional to 114,017.16, 157,344.66 and 63,719.40 is: 87,933.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,017.16 : 157,344.66 = 63,719.40 : x
  2. Step 2: Convert to fraction form
    114,017.16/157,344.66 = 63,719.40/x
  3. Step 3: Cross multiply
    114,017.16x = 157,344.66 × 63,719.40
  4. Step 4: Simplify right side
    114,017.16x = 10,025,907,328.40
  5. Step 5: Solve for x
    x = 10,025,907,328.40/114,017.16
  6. Step 6: Final answer
    x = 87,933.32

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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.