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Finding the Fourth Proportional to 110,947.52, 153,113.64 and 65,652.32

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Solution

The fourth proportional to 110,947.52, 153,113.64 and 65,652.32 is: 90,603.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,947.52 : 153,113.64 = 65,652.32 : x
  2. Step 2: Convert to fraction form
    110,947.52/153,113.64 = 65,652.32/x
  3. Step 3: Cross multiply
    110,947.52x = 153,113.64 × 65,652.32
  4. Step 4: Simplify right side
    110,947.52x = 10,052,265,689.64
  5. Step 5: Solve for x
    x = 10,052,265,689.64/110,947.52
  6. Step 6: Final answer
    x = 90,603.79

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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.