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Finding the Fourth Proportional to 112,184.51, 154,812.15 and 61,883.51

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Solution

The fourth proportional to 112,184.51, 154,812.15 and 61,883.51 is: 85,397.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,184.51 : 154,812.15 = 61,883.51 : x
  2. Step 2: Convert to fraction form
    112,184.51/154,812.15 = 61,883.51/x
  3. Step 3: Cross multiply
    112,184.51x = 154,812.15 × 61,883.51
  4. Step 4: Simplify right side
    112,184.51x = 9,580,319,232.65
  5. Step 5: Solve for x
    x = 9,580,319,232.65/112,184.51
  6. Step 6: Final answer
    x = 85,397.88

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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.