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Finding the Fourth Proportional to 122,152.32, 183,111.84 and 38,992.32

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Solution

The fourth proportional to 122,152.32, 183,111.84 and 38,992.32 is: 58,451.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,152.32 : 183,111.84 = 38,992.32 : x
  2. Step 2: Convert to fraction form
    122,152.32/183,111.84 = 38,992.32/x
  3. Step 3: Cross multiply
    122,152.32x = 183,111.84 × 38,992.32
  4. Step 4: Simplify right side
    122,152.32x = 7,139,955,461.07
  5. Step 5: Solve for x
    x = 7,139,955,461.07/122,152.32
  6. Step 6: Final answer
    x = 58,451.25

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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.