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Finding the Fourth Proportional to 112,955.40, 169,238.70 and 73,492.20

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Solution

The fourth proportional to 112,955.40, 169,238.70 and 73,492.20 is: 110,111.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,955.40 : 169,238.70 = 73,492.20 : x
  2. Step 2: Convert to fraction form
    112,955.40/169,238.70 = 73,492.20/x
  3. Step 3: Cross multiply
    112,955.40x = 169,238.70 × 73,492.20
  4. Step 4: Simplify right side
    112,955.40x = 12,437,724,388.14
  5. Step 5: Solve for x
    x = 12,437,724,388.14/112,955.40
  6. Step 6: Final answer
    x = 110,111.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.