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Finding the Fourth Proportional to 110,920.75, 153,070.65 and 60,619.75

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Solution

The fourth proportional to 110,920.75, 153,070.65 and 60,619.75 is: 83,655.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,920.75 : 153,070.65 = 60,619.75 : x
  2. Step 2: Convert to fraction form
    110,920.75/153,070.65 = 60,619.75/x
  3. Step 3: Cross multiply
    110,920.75x = 153,070.65 × 60,619.75
  4. Step 4: Simplify right side
    110,920.75x = 9,279,104,535.34
  5. Step 5: Solve for x
    x = 9,279,104,535.34/110,920.75
  6. Step 6: Final answer
    x = 83,655.26

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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.