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Finding the Fourth Proportional to 121,033.94, 167,015.12 and 70,036.50

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Solution

The fourth proportional to 121,033.94, 167,015.12 and 70,036.50 is: 96,643.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,033.94 : 167,015.12 = 70,036.50 : x
  2. Step 2: Convert to fraction form
    121,033.94/167,015.12 = 70,036.50/x
  3. Step 3: Cross multiply
    121,033.94x = 167,015.12 × 70,036.50
  4. Step 4: Simplify right side
    121,033.94x = 11,697,154,451.88
  5. Step 5: Solve for x
    x = 11,697,154,451.88/121,033.94
  6. Step 6: Final answer
    x = 96,643.59

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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.