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Finding the Fourth Proportional to 110,980.64, 153,153.84 and 60,679.64

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Solution

The fourth proportional to 110,980.64, 153,153.84 and 60,679.64 is: 83,738.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,980.64 : 153,153.84 = 60,679.64 : x
  2. Step 2: Convert to fraction form
    110,980.64/153,153.84 = 60,679.64/x
  3. Step 3: Cross multiply
    110,980.64x = 153,153.84 × 60,679.64
  4. Step 4: Simplify right side
    110,980.64x = 9,293,319,875.82
  5. Step 5: Solve for x
    x = 9,293,319,875.82/110,980.64
  6. Step 6: Final answer
    x = 83,738.21

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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.