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Finding the Fourth Proportional to 114,485.92, 157,901.28 and 69,116.48

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Solution

The fourth proportional to 114,485.92, 157,901.28 and 69,116.48 is: 95,326.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,485.92 : 157,901.28 = 69,116.48 : x
  2. Step 2: Convert to fraction form
    114,485.92/157,901.28 = 69,116.48/x
  3. Step 3: Cross multiply
    114,485.92x = 157,901.28 × 69,116.48
  4. Step 4: Simplify right side
    114,485.92x = 10,913,580,661.09
  5. Step 5: Solve for x
    x = 10,913,580,661.09/114,485.92
  6. Step 6: Final answer
    x = 95,326.84

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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.